Some of the characters get together and talk about "regrets" they have after 4 years of anime Gintama. Soon they fight over who gets more screen time. Special of the Gintama Harumatsuri live event.
Genres: Action, Comedy, Sci-Fi
Watch Gintama: Dai Hanseikai episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.