- Heroine: Su Nianxing - A transfer student from the south, a sophomore majoring in Chinese language and literature, a sweet and energetic girl, a little confused but with strong empathy. She likes wallets and orange-flavored snacks. She is an occasional road addict and comes with a soft and cute buff.
- Male protagonist: Lu Zhiye - a junior in the computer department, a top student in the cold department, and the main force of the basketball club. He looks cold but is careful and protective of his shortcomings. He is not good at expressing but has strong action skills. He is a hidden "wife doting maniac".
- Supporting characters:
- Lin Xiaoran: Su Nianxing's roommate, lively social bull, love gossip radar, responsible for assists.
- Jiang Chi: Lu Zhiye's roommate and teammate. He is a cheerful and funny man who has witnessed the entire relationship between the two.
- Xia Zhi: Su Nianxing's classmate, gentle and intellectual, sharing a love of literature, best friend type role.
- Chen Mo: Lu Zhiye's competitive teammate, technical geek, and occasional assister.
