Hulin, the only daughter of the country's most powerful merchant family, is brought up to be a flower, a butterfly and a sweetheart, and grows to be a huge woman. One day, however, a birthmark appears on her three-tiered belly, indicating that she is the destined mate of the second prince... I know I have to come forward, but it's impossible with such a fat body. I was going to hide for a while, She hears that the second prince, who is in a desperate search for a mate, is coming to visit her family, and she decides to study abroad in a neighbouring country at a moment's notice! A slapstick love story with adventure and friendship, set in a school ☆.