After the Divorce, I Married My Yandere Younger Brother

Two years into their marriage, her husband cheats, and his mistress gets pregnant.

Their happy life is shattered.

A boy appears by her side and tells her, “Sis, you still have me.”

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Before she jumps, Shi Jianyuan holds her tightly in his arms and whispers in her ear, “I’ll face the fear of death with you, and I’ll be there when you begin a new life.”

Strong, independent, gentle older sister vs. sweet-faced but sinister, lovesick younger brother