Quick Transmigration: Who Says the Female Lead Can't Be the Supporting Actress?

[Slow-paced, not a wish-fulfillment story] [Not immersive] [Quick transmigration] [Romantic rivalry] [Multiple male leads] [Mutual first love] [System] [Fixed couple]

The eldest daughter of the powerful Shen family in the capital, Shen Suosu, died of cardiac arrest while keeping vigil for her parents. As her soul floated in the air, she saw the sinister smile on her second uncle's face. By chance, she bound herself to System 001. To stay alive and uncover the truth behind the conspiracy, she must travel through one novel world after another.

The first world: Vicious heiress of a wealthy family x aloof, impoverished part-time student

She is the biological daughter from an orphanage whose life was switched at birth, and the villainess of this world.

Hmm... A villainess paired with a male supporting character makes sense, but can someone tell her why the gentle, modest male lead, who avoids her in the novel, is secretly a ruthless schemer...