After N Playthroughs, I Finally Unlocked the Hidden Ending

I open my eyes and see the Yorozuya trio gathered around me. I figure I must have transmigrated, but they vehemently deny my claim, insisting it's just a side effect of amnesia. Really? I don't believe it. "Want us to help you look for your memories?" Gintoki asks. I agree. And so the Yorozuya trio takes me on a journey supposedly about recovering my memories, but which is really just a humiliating spectacle for the public. In the room Kagura: "Why does the cover of this doujinshi look so much like that idiot brother of mine?" Shinpachi: "The characters in this police book look really familiar too..." Gintoki: "White hair and red eyes... Isn't that basically me with straight hair?" Author, if I've committed a crime, let the law punish me instead of torturing me by publicly exposing my kinks like this. Unfortunately, no matter how difficult the journey gets, the adventure has to go on. Looking at the smiles around me, I decide that no matter what, I'll save the world... as if. Isn't there something wrong with expecting a transmigrator to defeat the locals? Saving the world is, of course, the protagonist's job! Wait, the protagonist of a fanfic is me, isn't it?! The three essentials of someone else's adventure: friendship, effort, and victory. The three essentials of Sugawa Chio's adventure: public humiliation, salvation, and a happy ending. Brave transmigrator, go create a miracle! [Reading Guide] 1. First-person narration, amnesia from the start. Although this is a regression-loop story, the loops are basically over, so the golden finger isn't very prominent. 2. This is a single-series story, not a crossover. There will be references to other works, but the only setting is Gintama. 3. The pairing is Gintoki, one-on-one. I'll keep the other characters' romantic storylines as close to the original as possible. 4. The main quest is to save the characters whose tragic fates still haunt us. In keeping with the comedy genre's rule that nobody dies, many people will be saved. 5. I have nothing else to say, but I still have to come up with a fifth point... Well, I update daily, but there's no set time. Most updates will be very late, so please don't stay up waiting, Orz. Theme: I'm really trying my best to save the characters whose tragic fates still haunt us