Twenty-two-year-old Taichi "Tai" Kamiya navigates his fourth year studying political science and economics while living independently and balancing university with part-time work. Uncertain about his long-term career path, he actively aids victims of Digimon incidents. His young adult appearance features slightly shorter spiky brown hair with a full fringe, typically dressed in a medium blue short-sleeved hoodie (with a gray zipper) over a white T-shirt, black jeans, and blue sneakers bearing white cross designs. During the final battle against Eosmon, he sports an updated version of his signature childhood goggles on his head. His Digimon partner Agumon remains by his side, but their bond faces an existential threat: a countdown timer on Tai’s Digivice signifies their impending permanent separation as Tai approaches adulthood, accelerating whenever Agumon Digivolves. Tai confronts this harsh reality while battling Eosmon, an entity trapping DigiDestined in illusions of perpetual childhood. Though exhibiting matured leadership, Tai struggles with directionlessness after abandoning soccer and lacking a clear future goal. His protective nature persists, especially toward his sister Kari and fellow DigiDestined, even as the group disperses into adult lives. His resolve is tested when Menoa Bellucci—a former DigiDestined who lost her partner Morphomon—orchestrates attacks to prevent others from experiencing similar loss. Knowing fighting Eosmon hastens Agumon’s disappearance, Tai chooses to protect others' freedom to grow up. This decision leads to a final Digivolution where Agumon temporarily assumes a new form, "Agumon (Bond of Courage)," defeating Eosmon alongside Matt and Gabumon. After the battle, Tai spends his remaining moments with Agumon until the Digivice petrifies, confirming their separation. By the following spring, he channels his courage into pursuing diplomatic work focused on human-Digital World relations, aligning with prior epilogue depictions of his future. He maintains hope for a reunion with Agumon despite accepting their temporary farewell.