Quick Transmigration: The Cannon Fodder Female Lead Is Poisonous

System: Boss, our mission is to fulfill the wishes of the innocent cannon-fodder female characters who died tragic deaths!

Ruan Tang: I know.

System: But you're following the invincible boss route, killing gods when you meet them and demons when you meet them!!!

Ruan Tang: Did the female lead fail to rise to the top? Did the cannon fodder fail to defy fate and become a god?

System: ... You're abusing your beauty to get away with murder.

Ruan Tang: Is there anything more satisfying than being the big boss, the great demon king, the ultimate villain?

P.S. This novel is all about crushing scumbags and delivering sweet, satisfying payback! The heroine isn't a saint! She has an overpowered golden finger! So satisfying! So much affection!