[1v1] [Transmigrates into a Book and Becomes a Woman]
"I can't believe this." I grumbled as I helped the former "young miss" change into an adult diaper. Who could have guessed that the wealthy benefactor who'd supported me for years would get... and then... It wasn't until I needed money and couldn't get in touch with her that I realized something was wrong... After dealing with several problems, I was covered in injuries and still had to take this "broken" young miss back with me. Then her family went bankrupt, and I had no choice but to take her in for the time being.
Just as I turned around, I suddenly tripped and passed out. When I woke up, I found out I'd freaking become a cannon-fodder female supporting character in a novel!? You've got to be kidding me! I was a man in my previous life!