The text is like the title.
Setting: It is Yin who has not disappeared during the Yongwan period.
After the ending, Gintoki Sakata traveled back to the battlefield to resist the foreigners, and changed the ending of the story with joy4 in the original timeline. (In case of double silver time!)
There are past plot fabrications.
Medium.
Products for self-entertainment.
CP: Gao Yin and Du Bai are already dating.
The main text he, the extra chapter should say be
If the above is acceptable, please start.
No pitfalls.
Purpose: Change the world