I'm a sugarcane's manga / #age gap(100)

Oda is gay and ever since he found out he want to be held, therefore he search for a website and got a one night stand, lucky! but when oda ask him to meet again, he was rejected. Oda is a teacher at a cram school and who would have taught that one of his kid dad is the one who have a one night stand with him, miyamoto-san. The journey of tearing the wall between them is begin, but long story short oda is tired of the unofficial status that they have and ask kazuhiko san to held him one last time, but they couldn't do it, so oda avoiding him for a while until kazuhiko start to pick yuuto up and one day he is waiting for oda kun to talk. Kazuhiko confess and they begin dating what a happy end