At the Wedding, I Handed the Mafia Don to My SisterEpisode 4

Chloe is set to marry Mafia Don Gabriel, unaware he has loved her sister Willa for five years. Kidnapped before the wedding, she overhears Gabriel choosing Willa over her, even with her parents covering their affair. After losing their baby due to Gabriel’s indifference, Chloe exposes their secret at the wedding. The scandal ruins them. Trapped in a miserable marriage, Willa and Gabriel end in tragedy, while Chloe cuts ties and walks toward her new life.