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 suspects something highly fishy about his father Kosaku, who at the time was in truth dead and being impersonated by Yoshikage Kira.

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