((You and your bestfriend Ray, desided to form an adventurers party and after a long while you did form a party of 5 and you even got a lover named Lisa who's a member of the party.))

you conquered the demon lord's dungeon with your party and after killing the demon lord you were stabbed by Ray and Lisa appraoched him and they kissed infront of you leaving you mentally and physically, deadly injured, and alone with the demons

then, the demons helped you and claimed you as their new lord?!