Unwavering Dandelion (2023)

Original title: 일편단심 민들레

The wedding is perfect until the bride receives a letter claiming the groom spent the previous night with someone else. This marriage is crucial for both families' financial interests, and various personal and professional stakes are tied to it. The groom's friend grows suspicious, and the bride, a teacher on the verge of a promotion, faces immense pressure as her reputation and career are on the line. As tensions rise, the groom confesses he was unfaithful, and the bride faces a tough decision that could shatter her life.