The only way to defeat Hosen is to bring back the Sun to the Yoshiwara Shangri-La, the city trapped within eternal night. Seita runs for the control room to break open the iron-plated seal covering the city. Meanwhile, Gintoki and the Hyakka led by Tsukuyo are desperately holding off Hosen’s attack. But despite their best efforts, they cannot stop the King of The Night’s onslaught…