Antagonist Protection Service Novel

For the sake of the world, the Protagonist must die. “I... I think I like--” Whether you’re just a girl who fell in love with the wrong person. “N-no...! If I can go back... just one more time...!” A man who regresses to save the world. “Hero... Please, kill yourself.” Or a destined Hero chosen by the Goddess Herself to kill the Demon Lord. No matter what your purpose is, no matter who you are. Even if the whole world and everyone close turns against me... [The target, ‘■■, the Hero’, has been dispatched.] [Contract complete.] ...The Protagonist cannot be allowed to live.