Unaware of the Immortal Realm Below

Transmigrate? Transmigrate into a book? Or into the novel I wrote myself?

Fine, I can accept all that. But why, after transmigrating into the book, am I not playing any of the characters I wrote? I'm a completely new character! And I'm supposed to finish writing the novel from inside the book?

[System: Hello, dear Mo Pao. Since you only update your novel once every few months, the novel couldn't take it anymore and signed a contract with this System to pull you into the story and make you continue writing.]

[System: Your final mission is simple: kill the male lead, but first keep his affection for you at 100; prevent the female lead from turning evil; and find the thousand-year-old mermaid pearl.]

This is the final mission? These are three tasks that have absolutely nothing to do with each other!

“I refuse.”

[System: Automatic response: You don't get a choice.]

...Is the male lead handsome?