I only remembered one arc, I also forgot if the MC can remember the other arcs. Here's the things I remembered on that arc: (1) In this arc, there's a married couple (I think it's for convenience, or something). They live in a mansion(?). The MC here is first working in a cafe, the man (one of the couple) frequently go to this cafe just to see the MC. I can't remember what happened, but the woman (the other one of the couple) also took a liking on mc, and proposes to let the mc live on the attic of the house, like a secret lover or something, but mc sees it on a different way. (2) The husband found out about the mc, the couple got into a fight, then they both died, and became ghosts. (3) Idk what happened to mc, but I guess he also died? then became a ghost? (4) Years later, a group of youths(or students?) entered the mansion which were hunted by the couple. They got stuck there, and can't come out. The couple is killing people from the group. (5) I think nearing the end, the husband killed the wife(like devour/vanish or something bec she's already a ghost and clearly dead), and then mc and the husband was shown living peacefully in the mansion???? as a ghosts?? Sorry, and yes I also think this description sucks.