Ewan Amano

Yuu Amano (天野 ユウ) is Nene Amano's younger brother, and the reason that she is in the. Some time ago, Yuu was tempted into the Digital World by, who told him that no one could get hurt in the Digital World, and without knowing about his role in Yuu's disappearance, Nene later accepted DarkKnightmon's offer to serve him in exchange for his help rescuing her brother. It is soon revealed that Yuu is actually a willing partner to DarkKnightmon, and the true General of the Twilight army. However, after forcing Yuu to accept that death and suffering still exist in the Digital World, Mikey eventually convinces Yuu to leave DarkKnightmon and defect to the Xros Heart United Army.

Appearance
Yuu is a short blond boy with gray eyes. He wears black suspenders with plaid maroon-purple shorts with a pocket on each side. He also wears a grey shirt with a red tie, white socks, and black shoes. According to Nene, his eyes are very similar to Mikey's.

One year later, Yuu is quite a bit taller, and usually wears a yellow button-up shirt with white pants, and gray and green sneakers with white soles.

Personality
Like Mikey, Yuu is an excellent strategist, able to come up with good battle actions on the spot. Before Yuu came to the, he is quiet, compassionate, and above all emphatic to all life. He cares greatly for even the smallest forms of life, like a butterfly, and hates bringing anyone to harm. However, when DarkKnightmon opens a portal to the Digital World for Yuu and claims to be taking him to a world where nothing really dies or gets hurt, Yuu feels that he can act without remorse, as he isn't really hurting anything.

Because he thinks there are no consequences, Yuu treated the Digital World like a game and acted without regard to the safety of anyone in it. When he realizes that the Digital World contains living creatures capable of dying, Yuu feels intense remorse and regret for his actions as he joins with the Xros Heart United Army to redeem himself.

Description
Yuu lived with his father and older sister Nene. While catching bugs one day with his sister, he accidentally killed a butterfly and became distraught; the two buried it, but Nene would always remember how deeply the insect's suffering had affected him. Some time after that they learned that their grandmother had died, and a grieving Yuu ran off and hid in a playground while Nene searched for him. appeared before him and took him to the, where gave him a X Loader. As the X Loader took on a black hue, SkullKnightmon asked the boy to digifuse him with and became, who invited Yuu to join a game in "a world where no one dies", once he grew older. Yuu was returned to the Human World, but several years later, while walking down a street with his sister, DarkKnightmon returned for him and drew them both through a portal into the Digital World.

DarkKnightmon then hid Yuu from Nene and pretended to her that her brother was being held hostage, promising that he would recover Yuu if she helped him revive the Darkness Loader, to which she agreed.

As Mikey Kudō returns to the Digital World, Yuu watches from the Bagra Pandæmonium with DarkKnightmon, and states his wish to battle Mikey.

In Honey Land, Kiriha spots Yuu in the forest, and he's later seen after the battle against Zamielmon. Kiriha talks about the mysterious kid with blond hair to Mikey and Nene, which is when Nene starts suspecting that her brother is nearby. She runs off to find him, but is shocked to discover the cruel monster he has become. Yuu tortures her using Doumon's illusions, and despite Xros Heart showing up to rescue her, they are only able to drive off Yuu and his allies, rather than defeat him.

One year later, Yuu attends the Shinonome East Middle School and plays in the basketball team with Mikey and Tagiru Akashi. He has many fans, including Mami Takahashi, Haruka Hazuki, and Midori Miike. He's also an honor student, being in the seventh student in the seventh grade's rank.

During a game against the Black Devils, when Tagiru is knocked unconscious, Yuu makes a score. When Tagiru awakes, Yuu asks Mikey why he passed the ball to him. Later, he goes to the Game World to try the new card game, and meets Tagiru, who asks to play against him. Yuu doubts Tagiru can defeat him in a card game when he can't do the same in basketball, and two argue about Tagiru not knowing the true meaning of "Xros Heart", and Yuu accuses the boy of wearing goggles to mimic Mikey. Ren Tobari then stumbles on Tagiru, and Yuu catches a glimpse of his X Loader. He then follows Tagiru and Ren to the arcade's backdoor and sees him entering a portal to DigiQuartz, then goes report to Mikey.

In the street, he and Mikey see Tagiru with a crimson X Loader, and they follow him through the Time Shift portal, and witness the boy's battle against. In the school's rooftop, he grabs Tagiru's X Loader and sees MetalTyrannomon through a holographic window, and gives it back to him. Later, after Tagiru returns from his fight against, Yuu tells him that he won't allow the boy to treat Digimon battles as a game. Mami and Haruka, then show up and tell them about the disappearance of many students, with one of them disappearing in the pool. Tagiru tells him that Sagomon's base is a pool, and the two go to DigiQuartz, where they find Asami, Totsuka, and other two students in a suspended state, and hear their complaints. Yuu figures that the Digimon in DigiQuartz are dragged to the power in human emotions. Sagomon shows up and attacks them. Tagiru orders Yuu to rescue the students while he and fight Sagomon. After the battle, he sees the four students going home.

When their teacher asks Tagiru to deliver a printout to Tokio Hinoki, who was absent from class that day, Tagiru tries to get rid of the duty by challenging Yuu to a rock-paper-scissors, which Yuu wins. After Mikey shows up, the three go together, and Mikey comments that other members of the Robot Club have also been absent from class. Arriving at Tokio's house, the Xros Heart's statement that Tokio missed the class confuses Mrs. Hinoki, who claims the boy left to school that morning. After Tokio throws the three out from his room when Tagiru tries to talk to him, Yuu comments that Tokio is usually a nice person. When Tokio leaves for cram school, Xros Heart observes him to see where he goes, and see him climbing back his room. They follow him to DigiQuartz.

They arrive at a strange location in DigiQuartz, and follow Tokio to a building where the Robot Club is helping build. He asks the club to leave the place, and Tokio refuses because they dream to win the tournament. Whe Arresterdramon fights GigaBreakdramon, he and Mikey try to stop the Robot Club from approaching the battle. After the battle, Xros Heart sees the Robot Club make a new robot. At the roof, Tagiru praises the way Mikey "hunted" even Puppetmon's heart, and wishes to be able to do the same someday, which Yuu doubts he can do.

Digimon Xros Wars (manga)
Yuu, along with, , , and , appears in one of the omakes. The five, angry for not being in the manga, start to beat the author, Yuuki Nakashima.