Probably a long shot since I only remember a scene and a bit of extra info. The bottom is a masochist and did judo. I don’t remember much about the top but I believe they’re older. I think they met at their work place. The scene I remember is that the bottom went out drinking with his old college judo members and they sit him next to a senpai that only he could get along since he was ok being treated more roughly due to his disposition. He makes his way to the restroom where his drunk senpai starts to hit on him(?) but then the top shows up and does things to show he’s in charge in front of the other guy who runs away.
Any help is appreciated!