Villain: After Stealing Heaven's Mandate, Every Heroine Becomes Yandere

[Villain + Multiple Heroines + No Idiotic Characters + Traditional Fantasy + Invincible Protagonist + System + Ultimate Wish Fulfillment]

Chen Jin wakes up to find that he has transmigrated into a novel he once read.

He has a cultivation level that reaches the heavens, peerless looks, and a down-on-her-luck fiancee who will become an unparalleled female emperor.

Isn't he clearly the major villain from the later part of the book?

Luckily, he awakens a System at a crucial moment.

[Heaven's Chosen Protagonist System activated successfully.]

[Host Chen Jin, please fulfill your duties as the protagonist.]

[Defeat the villain! It's your duty!]

Chen Jin is completely baffled. But isn't the villain me? How did I become the protagonist?

Jiang Mengli: