Kagura’s older brother Kamui arrives in Yoshiwara. As the Seventh Division Captain of the Space Pirate Harusame, Kamui is here to talk with the division’s former captain, The Night King, Hosen. At first everything seems to go well, but tensions gradually start to build up… Meanwhile, escaping from Kamui and his men’s attack, Gintoki and the gang take refuge at Tsukuyo’s hideout.
Those geezers want proof that you won't betray them.
Esos viejos quieren una prueba 
de que no los traicionará.
Os velhos só querem uma prova 
de que você não irá traí-los.