Jaa, Kimi no Kawari ni Korosou ka?

Yuuma Fujikura is a constantly bullied first year high school student. When a classmate named Ryou Amezato, nicknamed "Amelie," helps him out one day, Yuuma tells him not to get any more involved, or else the bullies will target Amelie too. In response to this, Amelie only tells Yuuma that he would commit murder for him if Yuuma wanted.