Cute. Gay uke has trauma about het semes, wears a wig to hide his gayness as he is kindergarten staff. Guy he blows off for being het, curious/researching gay for some writing he was doing, turns out to be relative of a student. Seme likes him and gets him to overcome the trauma and date. Later marry and the students get together in epilogue hehe
Shou Sensei no Ecchi na Himitsu