Gu Nianxi is a vicious female supporting character. As the fake heiress who was switched at birth, her daily mission is to torment Bai Jin, the true heiress and heroine. She spreads rumors that Bai Jin is an illegitimate daughter, makes her wear her hand-me-downs and eat her leftovers, sabotages the projects she takes over, steals her fiancé... Gu Nianxi expects to see humiliation, resentment, and fury on Bai Jin's face. But Bai Jin is always unfazed. She finishes every last bite of Gu Nianxi's leftovers and carefully puts away the clothes Gu Nianxi has worn. Even after foiling one of her schemes, Bai Jin will knock on her bedroom door, lower her eyes meekly, and say: "Big Sister, I'm sorry. It's my fault for making you angry again." Gu Nianxi: "..." She trembles with rage. Naturally, as the vicious female supporting character, Gu Nianxi meets a miserable end. She is thrown out of the family, becomes a laughingstock, has every bone in her hands shattered, and ultimately takes her own life. But when she closes her eyes and opens them again, she finds herself reborn. This time, she decides she won't fight for anything. She'll stay far away from the Gu family and simply live her own life. Except Bai Jin has started looking at her differently. Clingy. Burning. Unabashedly desirous... Gu Nianxi thinks that perhaps, after her rebirth, the two of them can finally coexist in peace. Until she discovers her missing intimate garments in Bai Jin's room. --- Every night, Bai Jin has the same dream. In it, the corners of Gu Nianxi's eyes are flushed red as she whimpers and gasps as though she can no longer bear it. Her dark hair spills across Bai Jin's bed, her body heat seeping into the sweat dampening the sheets, her scent intoxicating. Tormented by these dreams, Bai Jin desperately tries to restrain herself, but nothing works. Both her gaze and her body are ruled by desire; she cannot stop herself from clinging to Gu Nianxi. She assumes it's merely a passing affliction of youth. Once the intensity fades, surely she'll return to normal someday. Then the dreams begin to change. The seductive fantasies become premonitions of death, and only then does Bai Jin realize in terror that this was never an affliction of the body. It is an obsession rooted in her heart. She is terrified of losing Gu Nianxi. So even if Gu Nianxi hates her, even if she curses her, Bai Jin will keep her locked securely by her side, never allowing her to quietly disappear somewhere beyond her sight. ... "Big Sister." A muffled sob trembles beside her ear. "Why are you crying again?" Bai Jin murmurs. She kisses away every tear that rolls down Gu Nianxi's cheeks. "Mm, you're right. You should blame me... How about I eat it for you, Big Sister?" Everyone says the Gu family's second daughter is elegant and refined, gentle as jade, the very picture of a noblewoman. Only Gu Nianxi knows that Bai Jin is insane. Greedy, wicked, insatiable... And she loves watching her cry.