When Sloane Lee is on the brink of death after a car accident at her younger sister's engagement banquet, she suddenly realizes she is the Vicious Supporting Female Character in a Favored-Protagonist Web Novel, destined to be abandoned by everyone. At the height of her despair, her true Childhood Sweetheart Zane Cheng breaks through the darkness to reach her, pulling her back from the edge with the words "Childhood sweethearts never betray". After being reborn, she refuses to accept her fate. She exposes the scheming fake sister, takes back her family assets, uncovers conspiracies, and under Zane Cheng's unwavering protection, she achieves a complete comeback, putting all those who betrayed her in their place. This is not only a vicious supporting character's desperate counterattack, but also a one-of-a-kind love that spans life and death and remains constant forever. Watch as the vicious supporting character overturns the favored protagonist script, and composes a thrilling revenge romance alongside her only exclusive childhood sweetheart!