Mike-chan to Kuro-sensei

A virgin teacher nearing his thirties’ worries, “Is it okay if I’m the only one being doted on!?” ーー A math teacher who is well-liked by students for his warm personality, Kusunoki. His lover is the most popular in class, Mishiro. Just when they were thinking about having sex, they both wanted to be bottoms with no experience topping! At first they used their fingers to tease, but as expected, their butts became lonely!?