Lolig's manga / #older man/younger man(2)

They'd been drunk. More specifically, his boss had been drunk. So when Sakamoto jumped him, Kurahashi just went along with it. After all, it was just the alcohol, right? Wrong. At least, that's what his boss thinks, and said boss doesn't have a problem with trying out a relationship with a colleague he thinks is in love with him. Unable to gainsay him, Kurahashi gets dragged into a relationship he never asked for - and he finds himself getting deeper than he ever imagined. From Storm in Heaven:

Aiming to become a sensei like his former sensei, Sugiura Sakae came to an elementary school as a contract teacher. Coincidentally, his former sensei, Fukada Ryuuji, is currently teaching here. Ryuu sensei is Sakae’s idol as well as his pillar of support. However, the "Ryuu-sensei" he once so admired, is totally different now. Feeling bothered, Sakae slowly realizes that his feelings for sensei have become love. But what about Ryuu-sensei?