Being the Villainous Crown Prince's Big Sister

Yun Duo accidentally rescued a young boy.

The boy was sweet and adorable, blushing as he obediently called her Big Sister.

Yun Duo's heart melted. She spent her days taking down scumbags and raising the child, living a carefree life.

Only later did she learn that this beautiful, well-behaved boy would grow up to become the villainous Big Boss who killed his father and mother, betrayed his country, and plunged the court into chaos.

Yun Duo, bound to the "Uphold Justice" System: ???

Xiao Yu was born crown prince, clever and virtuous, praised by everyone.

When he was twelve, a fire inexplicably broke out in Zhaoyang Hall.

He fled the capital. When he opened his eyes again, a gentle, clean hand was wiping the blood from his face.

Xiao Yu softly called her Big Sister, his heart full of malice: Hmph.

At first, gazing at her as her life ebbed away, he smiled innocently. "It's your honor to die for me, Big Sister."

Later, amid blazing peach blossoms and the lush spring scenery, he pinned her down, the corners of his eyes red, all reason gone. "If you ever dare leave me again, I'll have everyone buried with you."

/I'm only asking you, please don't leave me again./

Justice-upholding big sister VS world-bug villain

Theme: With light in our hearts, justice will prevail