Ano Toki Tasukete Itadaita Monster Musume desu. Isekai Ossan Kyoushi Totsuzen no Moteki ni Konwakusuru

by Okinosuke · Story and art

Series

It's been 20 years since he was summoned to another world and retired from the military. He's in his mid-40s now, still single, and working as a teacher for the low-achieving E-class. Until one day, when an elite "monster girl" transfers into his classroom.