Responses

I think they did have sex. Because after seeing Kaoru walking with women, michi said something like "don't do that shit in front of my place." because I think Kaoru's bedroom window faces Michi's window, therefore Michi can see him. Well yea it's not surprising if kaoru is a slut lol, and i agree that both of them are idiots old man
Pfft I bet Kaoru actually kinda dates him all those years, just never bothered to tell him (⌒▽⌒) you don't take someone's debt on and don't help them pee if you're not liking each other