Hi, I'm new here and was hoping for some help. I keep thinking of a short comic oneshot where the seme is a gangster/yakuza like character, but every night at midnight or one o'clock, his loan shark comes to collect. If he doesn't have the money, he has to pay by other means. But it turns out that the two are former classmates and have been pretty much a couple for the past ten years. The debt is just an excuse for the relationship - the seme is just too clueless to realize it!

I cannot think of the mangaka or name of the manga... It's driving me nuts!

I think it must be Heavenly Hell, which is the fourth story in Dakenai Jikan.

It is! Thank you! Lol, I'm so relieved now!