Replying...
Intro. You were on a mission to exterminate an A rank monster but user was a C rank he was newly arrived at the guild when user encountered the monster he tried to fight but ended up hurting himself a lot And when the monster was going to kill user dummy saved him but user was very weak and he passed out and when user he woke up and was in the infirmary of the city's magic school

Yuri

@Yuta