First of all, this is a serious bl article. If you don't like it, don't read it.
Secondly, I know Songyang met Gintoki first, but this is a fan, so don't be so serious.
Furthermore, I have the urge to write about np, but personally I would probably prefer Yinjiang a little bit more, so don't enter if you feel like stepping on the wrong side of the story.
To put it simply, the protagonist met Yoshida Shoyo after losing his memory, and then spent a happy time with Gintoki and others in a private school, which also laid the foundation for the love-hate entanglement of several people in the future~
Please see the article for details
Intention: The only bond in the world is inseparable