Su Xun is twenty-two years old and Jiang Yuan is sixteen years old.
Jiang Yuan has two brothers. One teaches her how to behave, and the other takes her to eat, drink and have fun. I thought Jiang Yuan would always live such a carefree and unscrupulous life, until she met the 22-year-old Su Xun on a rainy day...
Motto: "When it rains and an umbrella comes, we get to know each other."