Drama "Guarding the Sunshine, Guarding You" episode introduction, episode guide from 1-30, full series finale.

Devoting all one's love to a woman is simple happiness. If you fall in love with two women at the same time, it will be complicated suffering. If the two women turn out to be sisters, it will be even harder to choose. However, the beautiful answer is - who [stays with the sunshine and stays with you]? Then she (or he) is [staying with happiness and staying with love].