Katainaka no Ossan, Kensei ni Naru: Tada no Inaka no Kenjutsu Shihan Datta noni, Taisei shita Deshi-tachi ga Ore wo Houttekurenai Ken (Light Novel)

Nabeshima, Tetsuhiro | Sagazaki, Shigeru

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～ | From Old Country Bumpkin to Master Swordsman: My Hotshot Disciples Are All Grown Up Now, and They Won't Leave Me Alone