Hayato Kawajiri

Hayato Kawajiri is a key character in Part IV: Diamond is Unbreakable. He is portrayed as an ally to the main protagonists.

About
A schoolboy with a knack for science, he tends to spy on his parents with his homebuilt electronic devices. It is then that he notices several things highly suspicious about his father Kosaku, who at the time was dead and being impersonated by Yoshikage Kira.

When trying to seek for help and warn Josuke and the others of the mass murderer's presence, he had been placed under the severe influence of Killer Queen's Bite The Dust ability.

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