Marrying My Sister's Husband - Episode 3

Yu-Jin shocks her sister Yu-Ri by announcing her engagement to Chan-Yeong, despite them lacking romantic love, explaining the marriage is for the company’s benefit and her own interest. Yu-Ri warns Yu-Jin that marrying Chan-Yeong will cause her humiliation and pain, but Yu-Jin insists she will handle it. On their first night, Yu-Jin and Chan-Yeong sign a strict marriage contract to protect company assets and prevent property division after divorce or death, treating their union like a business merger. Yu-Ri questions the formality and urges them to consider a real marriage rather than a sham, leaving their true relationship uncertain.