Higashikata Family
The Higashikata family as seen in Part IV: Diamond is Unbreakable consists of three family members. A possible 'distant relative' with the same surname exists in the Steel Ball Run universe.
Ryohei Higashikata
Ryohei Higashikata (東方 良平) is a minor character from Part IV: Diamond is Unbreakable. He is the grandfather of Josuke, and the father of Tomoko Higashikata.A respectable citizen serving as a police officer in Morioh-cho for 35 years, he is killed by Angelo's stand Aqua Necklace early on in the series. This causes Josuke to vow to rid the town of Morioh from evil stand users.
Tomoko Higashikata
Tomoko Higashikata (東方 朋子) is a minor character from Part IV: Diamond is Unbreakable. She is the mother of Josuke, and the daughter of Ryohei.An attractive single mother practicing a teaching profession, she is known to have a strong temperament. Little is known about her relationship with Joseph Joestar other than that they had an affair while she was in college with the 62 year old man, which produced an illegimate child, Josuke, of which Joseph had no knowledge of until the boy was 16. She remains deeply in love with Joseph despite the man already being married; according to Josuke she gets emotional at the memory of him.
She is fond of a particular sponge cake from Kamakura.
Josuke Higashikata
See Josuke Higashikata.