Jiaming - 19 years old, a good student, handsome, clean and comfortable, with a hint of asceticism. Height 176cm and still longer. (Later, abstinence and flirting)
Yu Mo - the eldest son of the Yu family, very capable, 18cm tall, elite type, strong-looking, very masculine, loved by all kinds of people. (Although favored ones are often rejected)
Kuzumu - originally just a neighbor, he was 17 years old. When he was 9 years old, his parents died in a car accident and failed to save him. Later, the Jia family adopted him and became Jia Ming's younger brother. He seemed to be an active member, always elusive, seemingly arrogant, but actually restrained and quiet.
Zhao Ya——She exudes the aura of a mature woman. She is very interested in Jiaming and often helps Jiaming. She is a big sister and a close friend.
There are also characters introduced later.