Years ago, this idea was posted on a forum. At last, it has seen the light of day!
Split-Personality, Act One
1. Gintoki's older brother, Shinichi, really likes messing with Gintoki...
2. No matter where he goes, Gintoki will never betray his established character... (Actually, maybe he isn't afraid of ghosts. Maybe his imagination just runs wild and he can't rein it in...)
3. Gintoki is always there to fight evil. To be clear, this is not a hot-blooded action manga!
4. Gintoki is such a total Gary Stu...
5. What do you mean, Gintoki's a good detective? Doesn't he just guess right?!
6. Turns out Gintoki is actually pretty smart. He just keeps a low profile...
7. Sherlock Holmes is the root of all Gintoki's suffering...