Is Matsushita Private School gone without Gui Xing? No!
Setting background: The story of four masters, Songyang and Yin Gaogui, Xitian... Opened a medical clinic in the fictional Wuzhou.
Gui disappeared, and Gintoki and Takasugi realized that he was important, so they searched frantically for him.
It was written with a lot of resentment towards Sorachi Gorilla (everyone laughs).
Conception: