Kyotaro Imura serves as the undercover alias for FBI agent Kyotaro Yamada. His real surname, Yamada, translates to "mountain rice field," while the alias surname Imura means "well village"; his given name Kyotaro combines "capital" with the masculine suffix "tarō." He possesses fair skin, black hair shaved below the crown, and black eyes. His typical attire is a black suit, grey shirt, dark grey necktie, and black shoes. His imposing height and blunt communication style create an intimidating presence. Operating undercover, he poses as assistant to Menoa Bellucci, accompanying her from New York to Japan. His mission is to investigate her connection to incidents causing DigiDestined worldwide to fall into comas. While maintaining this cover, he secretly gathers evidence, including the discovery of Eosmon's data on a hard drive linked to his alias. During the crisis, he initially obstructs Yamato Ishida's attempt to rescue Takeru Takaishi and Hikari Yagami, leading to a confrontation. At this point, he reveals his true FBI identity and explains his undercover operation, clarifying that Menoa had already abducted the victims before Yamato arrived. This disclosure exposes Menoa as the architect behind Eosmon and the coma incidents. Following the defeat of Eosmon and Menoa's loss of control over the artificial Digimon, he arrests Menoa, concluding his investigation. His actions result in her being taken into custody for psychological evaluation and legal proceedings.