Well, Shall I Murder Instead of You?

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