Kaisuke ( 京佑 Kaisuke) is a junior member of The Capsules, and the youngest one in the group after Tetsuo Shima. He serves as a supporting character in the anime film, and by the ending, along with Shotaro Kaneda, is the last living member of the group, and possibly one of the very few living residents of Neo-Tokyo (along with Kaneda, Kei and Colonel Shikishima).
Kaisuke is a very short man, less than average, and has a brown, spiky hair. Unlike other members, who either dress in Capsule attire or leather jackets, he wears a simple green jacket with a light-green tucked shirt and a red tie, combined with regular brown pants. He also wears long red gloves.
Kaisuke is the mechanic of the group, shown when he was trying to charge the battery on his motorcycle using jumper cables from a laser gun battery (although he accidentally set his bike on fire during the process). As well as the other members of the Capsules, he is openly defiant to authority and has little regard for pedestrians, showing how he curses the oncoming wave of people running in the opposite direction while he was trying to drive on his bike.
Despite this, he is one of the softer, less volatile members of the group (unlike Kaneda, who is arrogant, Yamagata, who is brash, and Tetsuo, who has an inferiority complex and an explosive temper), and cares deeply about his group. He is shown to be bursting in tears when he sees Kaneda surviving the explosion of Neo-Tokyo, and was genuinely concerned about Tetsuo despite the fact he already killed Yamagata in front of him.