Gintama': Futon ni Haitte kara Buki Nokoshi ni Kizuite Neru ni Nerenai Toki mo Aru

The Yorozuya are wasting time as usual when the Lake Toya Hermit suddenly returns with an urgent warning: Gintoki needs a proper finishing move. His attempt to teach the supposedly essential technique becomes even more absurd when the Hermit's parents and their own disciples enter the picture. With Katsura, Hasegawa, Otae, and the rest dragged into the lesson, mastering one heroic move proves far harder than simply surviving the family behind it.