Hayato Kawajiri is a character in Jojo's Bizarre Adventure: Diamond is Unbreakable. Initially quiet and reserved, Hayato is an eleven year old boy who lives with his parents. But one day, he notices his father's sudden change in personality. He begins to investigate, and realizes Yoshikage Kira has replaced his real father. Kira manipulates Hayato to keep his power a secret. But Hayato manages to outsmart Kira and join forces with Josuke to take him down once and for all. Even without a Stand, he proves to be an essential ally in the final arc.

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