
I'm looking for a yaoi manga that I read a while ago. A guy accidentally summons a demon through his wall and the demon can change his age/appearance. The demon has a fiance that goes to get him back and also falls for another human.
I wish I had more details but there was a sequel about the ex-fiance and his love life, too.
Where the heck is this story going? It went from a system game to murim secondary world to demon fights against ultimate evil... are they just coming up with random shit to add to the story by sticking their hands in a paper bag?