Model worker and his little darling

He transmigrated into the world of Detective Conan and became the second-generation heir of an organization. He loves clinging to Gin, causing trouble, and courting death. There are storylines involving Kaito Kid and the zoo. It seems there's something he absolutely has to do, but everything is different from what he thought. What's the point of everything he's doing? Disappear? He's truly unwilling to accept this! ...