After Transmigrating into a Book as the Villain, I Just Want to Wrap Things Up, but the Heroine's Character Has Fallen Apart

Qin Tianming transmigrates into the world of a novel and becomes a minor villain with barely any scenes. System: As long as you, Host, finish your role perfectly, you can take me back to your original world and become the ultimate protagonist. Qin Tianming: Easy. I’m best at playing villains! Qin Tianming: I just want to finish my role! Where’s the male lead? Why are you depressed now?!