You are going to Watch Btooom! Episode 4 English dubbed online free episodes with HQ / high quality. Stream Anime Btooom! Episode 4 Online English dub Best in the World. In a flashback, the police arrive at a crime scene where they arrest 14-year old Kōsuke Kira, a sadistic necrophilliac who had murdered three women. Back in the present, Sōichi Natsume discovers Kōsuke near the shore, skewering frogs for fun. Sōichi tries to explain the difference between killing living things because it is wrong and killing out of amusement however Kōsuke rejects the explanation….