After thinking about it, I typed the word "Gintama" in the title.
But don't be fooled, this is a fanfic of Gintama's Gaiden 3 Year Z Group [nose-picking]
The heroine travels through time
If you haven't read the original novel, feel free. Anyway, it's not much different if you've read the main story.
Sometimes some of the plot from the original novel is used, but it may be basically original...
If the writing is not good, then you have tried your best.
To be honest, Gintama is a sacred object in my heart, and I wrote it with a very serious heart!
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Junko Tanaka
Gender: Female
Alias: Humanoid Weapon
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You can read the rest =W=