Same-sex couple Eun-soo and Ye-won are living together happily. One day, a terrible traffic accident occurs and Eun-soo is seriously injured and her sister Eunhae dies. Eun-soo is disabled and Eunhae's daughter Soo-min became an orphan. Now Eun-soo and Ye-won are in a position to take charge of Soo...