Atom Heart Father(アトム・ハート・ファーザーAtomu Hāto Fāzā) is the seventeenth story arc in Diamond Is Unbreakable. It narrates the ambush of Jotaro and Josuke by the ghost of Yoshihiro Kira, father of Yoshikage Kira, as the Joestar Group investigates Yoshikage's house.