Kei Nijimura is the Higashikata family's housekeeper. 

~!She is eventually revealed to be the daughter of Holy Joestar-Kira, making her Yoshikage Kira's younger sister. Kei is also a stand user who wields Born This Way, an automatic stand that produces freezing wind which activates when her target opens something.!~

This part will take place in Morioh-Cho (the same town in Part 4: Diamond is Unbreakable), but in the alternative universe in which Steel Ball Run takes place.
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Following the Great East Japan earthquake, Morioh has been stricken by vast earthen protrusions known by the locals as Wall Eyes. Despite investigation, professional estimations are left empty. Meanwhile, the young girl Yasuho Hirose discovers a man buried within the ground, he possesses a distinctive star-shaped birthmark together with deeply penetrating bite marks. The man, who has contracted a staple case of amnesia is taken in by a local family and given the name Jousuke Higashikata, however mysterious events cannot stop from piling one upon the other and soon that enigma known as stands emerges to complement the great cloud of confusion.