Daigo Nishijima

Daigo Nishijima (西島 大吾) is a character in Digimon Adventure tri.. He is a member of the Incorporated Administrative Agency and also one of the original DigiDestined.

Appearance
Daigo is a young man with fair skin, short greenish black hair, and brown eyes. He wears a beige shirt with a light blue star in the chest, brown shorts, pink slippers with white soles, and white coat. The coat has a pocket on each side of the waist and another in the left side of the chest, three white buttons, and Daigo wears it with the sleeves rolled upto the elbows.

Etymologies
Name used in Digimon Adventure tri.. Officially romanized in the official site's profile.
 * Daigo Nishijima (西島 大吾)
 * Ja: Nishijima (西島). Japanese surname that means "west island". Possibly a reference to, the of west.
 * Ja: Daigo (大吾) Japanese male name that combines the kanji for "large" (大) and "my" (吾).

Digimon Adventure tri.
Daigo was one of the original DigiDestined and was partnered with. During a climatic, losing battle against the, Daigo began to give up despite Maki Himekawa urging him to continue. However, just as all seemed lost, the Homeostasis possessed Maki and used her to make the children's partners digivolve. As Maki begged that was the only one left, Daigo told her they had no time. He then watched as the other four Digimon became the while Megadramon sacrificed itself to channel an immense energy attack against the Dark Masters.

Years later, Daigo and Maki attended the same college. Maki told Daigo about her plan to reboot the in order to bring  back. Worried about her obsession, Daigo tried to dissuade her from it and asked to instead be her "new partner". Although Maki laughed at his awkward manner, she agreed to date him.

However, at some point Daigo and Maki broke up. Both also became coworkers at the Incorporated Administrative Agency.

In 2005, Daigo went undercover as a calligraphy teacher at the Tsukishima General High School's 11th grade, monitoring the second group of. Two of them, Taichi "Tai" Kamiya and Sora Takenouchi, attend his class. One day, in the week before June 19, he talks to a student at the stairs in the school's entrance in the morning. Some time after that, he approaches Tai in the hallway, calling him out for being the only one of his students who hasn't delivered his career planning form, and orders the boy to meet him in his office at lunch. There, Daigo asks Tai about what he's interested in, and Tai mentions his friends "living far away", the Digimon, which Daigo misinterprets as them being overseas. In response, he advises Tai to study languages, and encourages him to chase his dreams. At sunset, he talks to Maki about witnesses of the infected Digimon.

On June 19, after attacks Tokyo, Daigo shows up and drives Tai to Haneda Airport in order to combat the monster.

Upon falling underground in the Digital World, Daigo Nishijima and Taichi "Tai" Kamiya discover an underground laboratory, with the 02 Digidestined and Gennai inside pods, with the machines providing them with life support. Daigo explains that the kids had gone missing and that he was forced to keep it quiet. The Mysterious Man arrives and states that they had found out about King Drasil's plan, so had to be dealt with. He breaks the life support machines, laughs and states that the machines were keeping them alive and that they can send them back to the human world but that should they do so, the lab will explode and that only one pod remains, meaning only one of them can go along with the rest of the 02 Digidestined. Already bleeding to death, Daigo tells Tai to "check out the remaining pod" to which Tai agrees, Daigo however closes the pod, sends the six of them back to the human world and then succumbs to his wombs, dying as the lab explodes. The four 02 Digidestined are then sent to a hospital.

Daigo joins as the second known DigiDestined (as he had a partner Digimon) to die and never revive. This also extends to their partner Digimon, Datirimon and Bearmon.