Shi Yi is a small, fat girl with an average appearance. She studies hard after going to college and ranks at the top of her class. She, Qian Xin, and Yang Ling form an iron triangle. I got acquainted with Qian Xin in an experimental class. They were in a group of three. Later, because they studied and experimented together for a long time, the three of them became good friends. Qian Xin is very thin, 1.75 Meters tall. He is very humorous and sings well. Yang Ling is Shi Yi's roommate on the lower bunk of the dormitory. She has big eyes and a slender figure. The only flaw is that she has a plateau red face. The three of them play together every day, forgetting what the opportunity is. The three of them are named Shi Yi as the eldest, Yang Ling as the eldest, Qian Xin as the eldest, and sometimes they jokingly call him Xiao San. Shi Yi has a boy he likes. He is tall and not handsome, but he has a unique masculine temperament and likes to wear white casual clothes. His name is An Feiyu, and he is Qian Xin's good brother. An Feiyu likes to tease Shi Yi and call her little bad guy. They often refer to each other as brother and sister, but only Shi Yi knows that she likes this so-called brother, but she doesn't know what An Feiyu thinks.