The official website for the television anime adaptation of Shigeru Sagazaki's Katainaka no Ossan, Kensei ni Naru: Tada no Inaka no Kenjutsu Shihan Datta noni, Taisei shita Deshi-tachi ga Ore wo Hottekurenai Ken (From Old Country Bumpkin to Master Swordsman: My Hotshot Disciples Are All Grown Up Now, and They Won't Leave Me Alone) light novel revealed additional cast and a second key visual (pictured) on Wednesday. The anime is scheduled to begin on April 5 at 11:30 p.m. on TV Asahi�...