Katainaka no Ossan, Kensei ni Naru ~tada no inaka no kenjutsu shihan datta no ni, taisei shita deshi-tachi ga ore wo hottekurenai ken~

An Old Man From the Countryside Becomes a Swords Saint: I Was Just a Rural Sword Teacher, but My Successful Students Won't Leave Me Alone! , 片田舎のおっさん、剣聖になる　～ただの田舎の剣術師範だったのに、大成した弟子たちが俺を放ってくれない件～