I Transmigrated Into a Cannon Fodder Male Supporting Character and Changed Sex (Transmigrate Into a Book)

You transmigrate into a book with the script in hand. Think you can strike a pose like a total badass and reach the pinnacle of life the very next second?

But...

What if you transmigrate as a cannon-fodder male supporting character whose family has been wiped out and who has nothing left, whose younger sister, fiancee, and confidantes are all part of the protagonist's harem, and who is already dead?

Qiu Shuyan: Thanks for asking. I'm in the Ziwei Secret Realm, and I just came back to life in someone else's body. First, I'm going to find a way to turn back into a girl.

Please note:

1. The female lead involuntarily transmigrates into a male body, then actively changes back into a girl.

2. Don't ask who the male lead is. I don't know. Whoever I write about is the one.

3. This story is also called: Starting a Sect Leader's Life from Scratch.