Um... So I don't think it is this one but maybe...
"Success oriented guide" ? I really don't think it's this one because the mc didn't die because of the ml but it's kinda similar so...
I don't know sorry
Unfortunately no. Forgot to mentioned that they all go to an academy where the guides wear white and gold and the esters wear black
*espers… but thank you though
I GOT IT ! I think ...
"How to Escape the Clutches of an Obsessive Top"?
YESSSSSS!!!! TYSMヾ(☆▽☆)
So, there’s a bl manga in the guide x esper verse, where the top guide (mc) went back to the past to stop himself from getting killed by the top esper (ml) who tries to protect his previous lover (2 ml?) and the ml ends up being obsessive and possessive of the mc