Josuke Higashikata (JoJolion)/Personality and Relationships

Personality
Josuke is afflicted by extensive retrograde amnesia; lacking memory of himself or events prior to meeting Yasuho Hirose, at which fact he occasionally becomes nostalgic.

He is a capable and detailed observer, able to accurately describe the dimensions of organic objects, while having retained specific memory of the informal names of at least three unique species, commented on casually from the view of a window.

He has a certain innocence, and an ignorance of certain subjects of common knowledge; for instance, favoring unselfconsciously to sleep underneath a whole mattress rather than its bedsheets for its "increased compression".

Josuke has a distinctive notion of justice and fairness; beating Ojirou Sasame during an interrogation having overcome his efforts to kill him; and favoring Daiya Higashikata in recognition of the "fairness" she extended to him during their confrontation.

Relationships
Josuke's first contact is with Yasuho Hirose, his discoverer; and he survives in the Higashikata family household after tentative adoption by Norisuke Higashikata IV.

Friends
Josuke holds Yasuho in uniquely special regard, as the first person he has ever met or known. Yasuho's casually considerate nature with Josuke in the first instance is to have naturally built with his trust. Yasuho is able to appreciate his innocence. They are the only certain allies in the story so far, and they seem to hold for the other the particular seeds of a romance.
 * Yasuho Hirose:

Family
Mutually suspicious; Josuke's natural curiosity as to his origins and Norisuke's intentions carries him beyond the boundaries set for him by the Higashikata patriarch as condition to his residence at the family home, which Norisuke appears to have offered under ulterior motives. After engaging Josuke with her Stand, Daiya expresses arousal for him, which Josuke acknowledges to an extent while in a state of diminshed responsbility. Upon her defeat, he extends his friendship in recognition of the personal virtues she expressed during their engagement, with Daiya pledging a degree of assistance in his enquiries. Emotionally immature and unstable, Joushuu percieves the sight of the newly-conscious Josuke lying nude on the ground next to Yasuho as an insult, becoming enraged and attacking Josuke with lethal force before he is subdued. Joushuu retains a powerful sense of insult at Josuke's interruption in his relationship with Yasuho and his family. Paired by Norisuke while traveling to school together, Josuke exerts an arms-length reception of Joushuu, who persistently curses and discriminates against him.
 * Norisuke Higashikata IV:
 * Daiya Higashikata:
 * Joushuu Higashikata:

Past Affiliations
Josuke initially didn't recognize Karera at first, however she insisted that she knew him before. Karera refers to him by the mysterious name "Setchan" and leaves before Josuke can obtain more information on his identity. Obtaining her name using Soft & Wet, Josuke lies to her about Yasuho in a failed attempt to retrieve more information. After showing Josuke an old picture on her cellphone of her, Kira and a mysterious other boy she reveals that Josuke's identity is that of Josefumi Kujo - the other boy in the photo. Perhaps the most mysterious link to Josuke's past; from Karera's account, Josefumi was originally Josuke and apparently knew Kira at some point before losing his memories. The trio seemed to be friends at the time before Josefumi and Kira were fused together to create the current Protagonist.
 * Karera Sakunami:
 * Josefumi Kujo