Tomonori Ryusenji

Tomonori Ryusenji is a professor that works at Tokyo University of Electrical and Computer Engineering, is the major shareholder of the IT giant Abadin Electronics — and is also one of Abadin's founders. He likes to collect Digimon, with Digimon such as Betamon and ModokiBetamon known to be within his collection.

Etymologies
Name used in Digimon Seekers.
 * Tomonori Ryusenji

Description
Tomonori is a world authority on Digimon research. He has strong pride as a Digimon researcher and prefers to be called Professor over his name.

Digimon Seekers
As an assistant professor at Tokyo University of Electrical and Computer Engineering, Tomonori taught many students such as Kosuke Kisakata, Shuu Yulin, and his own daughter Saya Ryusenji. Saya and Kosuke got married, making Kosuke his son-in-law, and though they got married Saya didn't take his surname and instead kept her maiden name. He also owned a company known as Ryusenji Laboratories — which was able to vault to the forefront of Digital World research shortly after its discovery due to the hard work of Tomonori and his students.

One day, when Yulin arrived at Ryusenji Laboratories and delivered the mail to the professor, who was busy analyzing some code. He complains about the code itself being awful, expressing shock that it was probably written by Ryusenji himself. As they discuss Yulin's request for a proper server room, the campus being transferred to Denrin, and the new investments in their field around the world, Ryusenji lets her know that since the campus was going to be moved, all requests such as the server room were rejected since it'd be seen as a waste of money. Yulin questions if they will have to go overseas, prompting an annoyed response by Kosuke, who once again had slept in the office. As Yulin calls him out for his habits, Saya arrives with food for everyone and a change of clothes for Kosuke.

As the group eat the food Saya had brought them, Yulin scolds Saya for coddling Kosuke too much though she fires back about how she is now his wife and not his mother. Tomonori laughs at the group's interactions, with the group moving on to talk about their research. Since Digimon didn't live very long, research wasn't going well and they figured they needed to find a way to breed and raise their own Digimon to make studying them easier. Saya mentions that if they really are living creatures they could raise them like pets, though Yulin points out she didn't feel that way herself. As they muse that extra-terrestrial life was actually on the Internet the whole time Tomonori laments that they will need money to be able to continue their research — something everyone is able to agree to. Fully devoted to this cause, Tomonori announces that he is going to start a company and as they doubt his ability to Kosuke brings up that the University had money set aside for start up companies which they should be able to use for this end if they were able to convince them to back the project. They decide Yulin should make the pitch since she was trilingual and good at presentations but Yulin herself was worried someone with Chinese ancestry doing so would ruin the entire plan. She winds up agreeing to do so as the others let her know that it didn't matter and she was the only one who could do it.

Some time later, having found a new office, Ryusenji Laboratories prepared to start their move. Kosuke tells the others the they wont see much of him as he would be "fighting on the front lines", with Saya disappointed with the fact he didn't have enough credits to graduate yet. Kosuke muses that it doesn't really matter as he doesn't mind staying at the University for a few more years with Tomonori saying he will hire him regardless of if he graduates. Saya protests, saying that's not something a professor should say — but he simply laughs saying maybe she's right.

Tomonori Ryusenji and his students were able to get permission to use a warehouse within the Denrin District as a temporary base for their work despite the fact it was going to be destroyed for redevelopment soon. The group redecorate and replace the name plates with it acting as the headquarters for not just the University but Ryusenji Electrics as well. Tomonori was very happy, since he was now running his own business — even with the massive debts he had incurred setting it up. They had managed to set it up with a mix of University funds, money from the government, and Tomonori's own money — the biggest amount coming from Tomonori himself. Now they had managed to set things up, the group were ready to use Digimon to unlock something significant for humanity.

Some time later, Ryusenji shows off the fruits of his labor — the Digimon Dock. He intended to use it to record the actions of the Digimon, though none of his students were impressed with it. Since the Digimon die fast on their computers, he wondered if he could recreate their habitat as closely as possible within something else — hoping the Dock would be able to help with that. He decided to make it a toy, as he wanted children all over the World to be able to become friends with Digimon. When he refers to the Digimon as humanity’s irreplaceable companions, Yulin becomes enamoured with the idea and when Saya notices this she gives her a Digimon Dock. Yulin is surprised to see a Digitama on it, with Saya and Tomonori explaining they had found it on the Internet and that the Dock was able to display the data itself instead of as a series of numbers like on their computers. The group are amazed at the sight, and become even more excited when the Digitama begins to move. Thinking it was going to hatch, Tomonori snatches it out of their hands as he wanted to see.

Many years later, and the Digimon Dock was a success. Many people had befriended and raised Digimon and and it did indeed allow them to live longer. More and more sponsors poured money into Tomonori's research and with more money, Tomonori was able to increase his influence within the University. The extra money also allowed the University itself continued to grow.

Tomonori eventually became a full professor at the University, and also became the major shareholder of the IT giant Abadin Electronics — and was also one of Abadin's founders.

At some point, he had tried to create an amusement park named "Digimon Land", but had to shelve the plans as some people used Digimon to commit crimes. Crimes involving Digimon were not known to the public as World leaders had covered them up, and he figured it would cause an uproar if anyone found out that the same creatures in Digimon Land were also being used to do crimes and thought the media would probably create a media storm calling Digimon and the evil.

Some time after that, Leon Alexander had visited Abadin Electronics with his father. Whilst there, Tomonori had shown Leon a video of the Digital World, followed up by him giving him Digimon Dock with a on it figuring he could raise the Digimon well. Leon spent his youth desiring to study Digimon and upon becoming old enough applied to join Tokyo University of Electrical and Computer Engineering since it would allow him to return to Tomonori, who worked there. During this time, he had also given updates on, with Tomonori telling him how to upgrade his Digimon Dock as thanks. Leon was eventually able to attend the University as part of a study abroad program and whilst living in Japan, rented a room belonging to Tomonori.

Some time later, Abadin Electronics had collected from Ninth Avenue, supposedly to keep it safe.

Some time later, he hired Eiji Nagasumi to get him a ModokiBetamon.

After Eiji captures the ModokiBetamon for him, he goes to the reception of Abadin Electronics and texts Tomonori that he had arrived. As Eiji marvelled at a nearby 3D image he is approached by Tomonori, who refers to Eiji by his alias "Fang". Eiji introduces himself with his actual name, with Tomonori telling a flustered Hatsune to give Eiji a guest pass and a co-researcher pass as they were going to visit D4. He escorts Eiji to D4 and tells him he plans to show him Abadin Electronics' top secret project. As Eiji was about to follow Tomonori in, the security guards perform a security check on him and take away his personal belongings.

After taking Eiji into the room, he shows him a presentation on the nearby computer which explains to him what the Digital World and are. It explains that most people don't know about them, then segways into talking about how criminals had been using Digimon to help aid them in their illegal activities. The presentation shows footage from someone who was on a plane, with the footage showing the plane falling from the sky — having been shot down by someone who owned a Digimon. This freaks Eiji out, and he decides he didn't want to see any more.

Tomonori takes Eiji to his office where Eiji gives him his Digimon Dock. He puts it into his lab equipment and happily celebrates when it hololizes and shows that Eiji had managed to capture the ModokiBetamon he had asked him to get. Eiji, having seen a Betamon during the presentation, is confused as to why Tomonori wanted a ModokiBetamon since he already had a Betamon and didn't know what made them different other than the difference in color. Impressed that Eiji had noticed the difference in the first place, Tomonori gives him a bonus on top of his regular payment. Tomonori asks Eiji what he thought of the earlier video, and though he hadn't enjoyed the plane part, said he enjoyed the video. He tells him about his failed plan to open Digimon Land. Eiji tells him he liked the part where it said Digimon were "living A.I. creatures" and thought it was cool fiction and that if he were still a kid he would've loved it even more. Tomonori, hearing heard what Eiji had just said, tells him that Digimon are not fictional, they are real.

Eiji laughs and says it would be cool if they were actually real. He asks Eiji if he wants to know the truth about the Digital World and what was inside of it, which Eiji agrees to as he wanted to see what Tomonori had been seeing. Having originally thought that the video footage was made on a computer, Eiji realizes the footage was in fact real and reacts in excitement about the fact he had learned that Digimon were actually real.

As Tomonori tells Eiji that he had dedicated his entire life to researching the Digital World, the transfer of ModokiBetamon finishes. Tomonori picks up Eiji's Digimon Dock and throws it towards the trash can, with Eiji reacting quick enough to catch it before it went into it. Annoyed, since he had spent a lot of money on it, he asks Tomonori why he had done so, with Tomonori telling him that there was an error in its memory and that the error had nearly destroyed the ModokiBetamon during the transfer due to how old his Dock was. Eiji tells him that he can't throw it away, since he doesn't have much money, and that the old Dock was all he had. Hearing this, Tomonori gives him a brand new Digimon Linker which had already been calibrated to work for Eiji — since he had always planned to give it to him in the first place. He then shows Eiji that the Digimon Linker wasn't the only gift he had given him, pressing a button on the device to show that he had also given him a new Digimon —.

A few days later, after Eiji receives an urgent call from Abadin Electronics, he rushes over to Tomonori's office. He asks Tomonori what was up with Loogamon, though Tomonori just tells Eiji that he seems to have been raising Loogamon well and that he will reward him even more if he is able to get Loogamon to digivolve to higher levels with each level bringing him more rewards. Eiji tells him not to change the subject and asks him if he had read the training report he had sent, though Tomonori says he hadn't as he received hundreds of emails per day and as such hadn't had time to read it.

Tomonori opens up the email and clicks on the video file Eiji had attached to it and watches as it shows Loogamon in front of four bowls of food, with his three trembling in fear of the dog Digimon in the corner of their cage. Tomonori tells Eiji that Loogamon is a wolf, and that when wolves form a pack they always have an and are strict about their social hierarchy. Loogamon had made itself leader of the pack despite being at a lower level than them and as it was the leader of the pack, had first dibs on food. Eiji tells Tomonori that Loogamon had even tried to eat one of his Tyrannomon, then complains that it ate too much and popped too much and that he couldn't afford to feed such a glutten. Tomonori didn't care though, and after Eiji realized this he instead asked about the thing on Loogamon's forehead. Tomonori doesn't tell him what it is, though still praises him for noticing it, then asks him if he had used Loogamon in battle yet. Eiji cries out about how Loogamon wouldn't listen to a single one of his commands, unlike the real dog he used to own, and so Tomonori tells him to hololize it. Eiji does so, with Loogamon being asleep. Tomonori analyses the data and is impressed, praising Eiji for how high his DS value was. He tells him that no one else had ever managed to score so high and that he was glad he had hired Eiji for this. He asks Eiji if he had gotten his other Digimon from GriMM, which he confirms, then asks Eiji to tell him what his occupation was. Eiji tells him that he is a code cracker, which Tomonori says means he should know what Crack Teams are.

He plays a video for Eiji which explains what Crack Teams are. He tells Eiji he can do whatever he wants in the Network and Digital World, as they had no borders or laws, but warns him about his code cracking job since the government consider them to be trouble makers. Eiji protests, saying he's careful and that the DigiPolice wont go after him. Tomonori brings up that Eiji was a code cracker but doesn't seem to follow the same ideals as them and asks him what his goal is, to which Eiji says is to win. He wants to become a really good code cracker so that he can raise Digimon well, make lots of money, and have a team of his own just like Tomonori. Tomonori wonders if he has to be a code cracker to achieve those things, to which Eiji affirms as he wants to get into the Digital World and sees it as the only way to be able to do so. Tomonori breaths a sigh of relief and tells Eiji that he was just testing him, as if Eiji had shown he believed in the ideals of the other code crackers he wouldn't have hired him.

Tomonori plays another video, this one displaying information about the Sons of Chaos. Eiji says he knows who they are, and Tomonori asks him what he thinks about them. Eiji says he thinks they are dangerous and are known for doing crimes with Digimon. Despite this, Eiji finds their leader, Tartarus to be very charismatic, despite not actually knowing who it was. Tomonori tells Eiji that although they are popular, they are meddling with the Digital World's ecosystem in a very negative way which would also cause issues to the human society, and as such was threatening his research. The last thing he wanted was for such crackers to cause laws to be made against the Digital World and that the prime minster and police weren't doing enough to stop it. Eiji brings up that it sounds dangerous, to which Tomonori asks if that means he wasn't interested. Instead however, Eiji was even more excited as he had always wanted to confront other code crackers over their terrible acts. Happy with this, Tomonori tells Eiji to join the Sons of Chaos as an undercover agent so he could find out what Tartarus was up to.

Days later, Eiji goes to a meeting with Tomonori, who congratulates him on his recent results with Loogamon. Eiji tells him that he had been accepted into the Sons of Chaos, informs him of his trial mission in Ninth Avenue, and tells him it was easy since Loogamon had lived there before. Tomonori tells him that Abadin had collected Loogamon from Ninth Avenue to keep it safe, though doesn't expand on that when asked. Eiji continues to tell him about the mission, and about the fact that Loogamon had regained some of its memories, with Tomonori telling Eiji to be there for Loogamon when it gains its memories as regaining them can cause mental anguish. As Eiji affirms he will, he is given a reward due to helping Loogamon digivolve to Champion and is tasked to continue looking into the Sons of Chaos. He tells them he already has a meeting set up with the higher ups of the group, impressing Tomonori — who becomes even more impressed upon learning his meeting will be with Marvin Jackson. He reminds Eiji not to blow his cover, then opens up a file for him to see stating it is so important it is a matter of life and death.

Tomonori shows him video footage of the person who had Mindlinked the most. The person's body has negative reactions to Mindliniking with the person convulsing and having to be attended to by medical personnel. The man eventually ends up motionless, seemingly dead, with Tomonori telling Eiji that the higher level the Digimon the less time they can spend Mindlinked warning him something like what happened to the man in the video could happen to him too. Should Eiji spend too long Mindlinked his mind will never able to to return to his body, and his body will die shortly afterwards. His consciousness would still remain within Loogamon, though he would be forever trapped within his partner. Tomonori sets a warning system within Eiji's Mindlink and tells him to return when it tells him to to avoid falling to the same fate.

Sometime later, having severed their Mindlink, Pulsemon and Leon wake up in the real world. Leon takes off Abadin Electronics mindlink endurance test apparatus, with the duo congratulating each other on their success at breaking the Mindlink world record. Tomonori arrives and congratulates the duo on having gotten revenge for the entire country of the United States of America, since the X Nation's Machinedramon had been responsible for WWW Flight 626's crash, which resulted in the deaths of over 100 Americans and Leon had killed Machinedramon. Leon was pleased with this, since he wanted to get personal revenge against them for said terrorist attack against his home country. Happy at finally having been able to get his revenge, he reminisces about everything he had been through since meeting Tomori more than a decade earlier. He then tells Tomonori he has to leave, as he had a meeting with Eiji to attend. Leon had defeated the SoC, who had been trying to free the Machinedramon to make it their minion, with Leon having defeated Eiji during the mission. This lead to them reconnecting online and setting up a meeting.

After his meeting with Leon, Eiji goes to meet with Tomonori Ryusenji in his office. They discuss the SoC's failure in trying to acquire Machinedramon, with Eiji noting he had realized just how serious the Mind Link limit was. To the annoyance of Loogamon, Ryusenji mentions they survived as they had kept time on their side with Loogamon taking it to mean had they not they would've lost. It insists it will defeat Pulsemon should they ever fight again, with Ryusenji telling him he would, at the least, need to digivolve to Ultimate to stand a chance of doing so. Wanting to win, Loogamon tell Eiji to help it digivolve to Ultimate, which Eiji happily agrees to do. Sad that they had been unable to capture Machinedramon, Eiji blames Leon with Ryusenji mentioning him as one of his employees. He brings up a file on Kazuchimon, with Eiji worried that fighting one of his employees might get him fired. Ryusenji assures him he has no reason to fire him with Leon disapproving of Eiji being a hacker having nothing to do with their relationship. Though he didn't tell Leon about the fact he was working as a double agent, he tells Ryusenji he's worried Leon could figure it out and let it slip though as Ryusenji tells Eiji he will deal with Leon his phone rings with the news his next appointment had arrived. Eiji excuses himself, though not before telling him he had had contact with Tartarus. Interested, Ryusenji asks how he was though Eiji reports he only heard his voice — relaying that no one had ever DMIA during one of his missions and that he wanted a BlackAgumon. Ryusenji calls in his waiting guest — Shuu Yulin — with Eiji walking passed her on his way out.

During a battle between Eiji and Leon, Leon goes over his Mindlink limit to protect Eiji from of the  — who had shown up and attacked them in the middle of the battle. Eiji sends Ryusenji a message about what had happened to Leon, with Ryusenji letting the doctors into Leon's building since he was the one who owned it. They rush Leon to the hospital with Leon having now found himself in a coma — suffering from DMIA due to having used Mindlink for too long. Tomonori was seemingly upset at seeing his student in such a state, with Leon now never able to be awoken from his coma. He whispers to Leon that he "knew one too many lies" and watches the monitor displaying his pulse.