help

i cant remember the title but and im not fcking sure if its the same story or whatever coz ive read too much so its all scrambled all i remember that theres one irregular guy(not if thats what they called) and he went to some test to check whats his rank or sum but he ended up meeting this priest girl and the girl ssked him to be part of their religeon but he refused and the priest girl did something that if they refuse to submit theyll be on fire on something until thy submit but the mc refused and he got through the submission thingy..... idkkkkkkk i wanna read it but i cant fcking remember!!! and i also think he came back in time ╥﹏╥ pls help