Kosaku Kawajiri is a character in the anime series "JoJo no Kimyou na Bouken" (JoJo's Bizarre Adventure). Initially, he is an ordinary family man living in Morioh with his wife and son. However, his life takes a dark turn when the series' main antagonist, Yoshikage Kira, assumes his identity to escape detection. As a result, Kosaku's personality becomes intertwined with Kira's sinister nature. This dual identity creates a tense atmosphere in the series, as Kira continues his quest to maintain his anonymity while Kosaku's family remains unaware of the danger close to them.