Otae and Shinpachi are invited to Kyubei’s birthday party. The two arrive at the Yagyu mansion with a birthday cake in hand, only to find the place filled with celebrities from the entertainment and political worlds and other various industries! When the two begin to feel out of place, they spot Gintoki, Katsura, Hasegawa, and Kamenashi (without his shell) causing a huge commotion. Naturally, with these members together in one place trouble is bound to happen…
The celebration of Kyubei Yagyu's birthday was a surprise I planned in secret.
La celebración del cumpleaños 
de Kyubei Yagyu es una sorpresa.
A comemoração do aniversário do Kyubei 
Yagyu é uma surpresa que fiz escondido.