Josuke suffers from extensive retrograde amnesia, lacking any memory of himself or events prior to meeting Yasuho Hirose, but retaining varying degrees of knowledge. As such, Josuke is driven to discover who he was by investigating the circumstances of his presence on the beach before being rescued by Yasuho; this goal consumes almost all of his activities, and no action on his part is taken without bringing him a little closer to uncovering the truth. Being amnesiac, Josuke places great emphasis on his family and heritage, desiring to learn about his own past. The fact that no one came to look for him while he was hospitalized deeply unnerved him, to the point that he could shed tears just thinking about it, and Josuke honors the adoption that Norisuke Higashikata IV takes on him, considering himself part of the Higashikata Family. Although polite, he is usually distant with his acquaintances, possibly because he is not used to the Higashikatas and by extension to anyone until now.
Speaks politely but distant; links every observation to a detail like it’s evidence.
Wants to discover who he is.
