The Heroines Who Got Their Scripts Are Rebelling

After I transmigrated into a book, I got a System that lets me grow stronger by doing sign-ins and following the plot.

I thought I could just follow the story, casually sign in, play the villain's lovesick lackey along the way, then finish the story and claim my rewards.

But I never expected the heroines to have scripts of their own...

Wait, why is this woman in my bed?

"Get lost! I'm not stealing the protagonist's woman!"

P.S. Guaranteed harmless and toxin-free. The author's specialty is sprinkling in sweet moments.