Poor boy, he looks shaken, dissociated, and terrified. He was just a child back then, with no one to protect him from any of it. Being exposed to violence and gore at such a young age must have done something irreversible to his brain before he ever became desensitized to it.
skk canonically being obsessed x obsessed is insane. wdym dazai owns 27 notebooks only about chuuya and has memorised his movement patterns, and chuuya for some reason has the number of EVERY woman dazai has slept with and 190 methods of specifically exacting revenge on him bruh