Heiji Bandō serves as a new recruit aboard the Space Battleship Yamato during its 2205 training and diplomatic mission. He hides significant personal resentment toward Captain Susumu Kodai and the Yamato itself, stemming from the death of his father immediately after the time fault's disappearance—an event linked to the Yamato's earlier rescue operations. This concealed animosity raised suspicions of revenge-seeking, leading to Bandō's near dismissal. Kodai intervened, drawing parallels to his own past resentment toward Captain Okita. Bandō was consequently reassigned to the accounting section (主計科) but remained aboard. Later, motivated by a desire to aid Iscandar and Gamilas refugees after the planet's destruction, Bandō joined five other new recruits in a failed mutiny. Their aim was to force the Yamato to assist Iscandar by framing the action as a "rebellion by new recruits" rather than an official Earth government decision. Following the mutiny's failure, Kodai confronted them, questioning their lack of consultation with experienced crew. Bandō's specific actions or duties within the accounting section beyond this point are not detailed.