After transmigrating into the book, I became the little sun of the crazy villain.

Transmigrating into a cultivation novel, Yun Zhao is bound to a system with the mission of seducing the villain, Qi Yan. Qi Yan is a ruthless and insane individual, committing countless atrocities including patricide and fratricide, and even wiping out the protagonist's entire team in the future, causing the world in the book to collapse. On her first day in the book, Yun Zhao looks at the man on the high platform, bathed in the gentle breeze and bright moonlight. Yun Zhao: That's the villain? Later, with a system notification, she learns that Qi Yan is the male lead's half-sibling, bearing a striking resemblance to him, and is destined to never see the light of day. While the male lead sits on the platform, Qi Yan is imprisoned in a dark, sunless dungeon, forever dwelling in darkness… Qi Yan, possessing demonic blood, has suffered endless mistreatment. Reborn, he resolutely embraces demonic power, determined to avenge his enemies. The dungeon is gloomy, and then…