Childhood friends Kim Jongkook and Song Jihyo, close since youth, face a turning point when their families arrange a marriage to merge successful businesses. Jongkook harbors deeper feelings for Jihyo but keeps them hidden to preserve their friendship. The unexpected news of the arranged marriage shatters the innocence of their bond. Reluctantly, they navigate the complexities of this forced relationship, exchanging vows with unspoken feelings lingering. The transition from carefree companions to spouses is marked by a bittersweet undercurrent. Unfortunately, the forced union begins to change Jihyo, once a caring friend, who grows cold under the weight of family expectations.