Kakeru Sorano: A first-year university student. A slender young man with natural black short hair and a calm atmosphere. He is not good at expressing his emotions and tends to keep his distance from others, but he is inherently kind and has a strong sense of responsibility. He had closed his heart due to past experiences, but he begins to change little by little after meeting Koharu Fuyutsuki. He has a sincere personality, unable to ignore people in trouble and seeing things through to the end once he decides on them.

Koharu Fuyutsuki: A first-year university student. A neat and beautiful girl with shoulder-length black hair and a memorable, soft smile. Although she lost her sight in high school, she has a positive and bright personality that makes one forget her disability. She treats everyone equally and possesses a kindness that naturally attracts people. She makes a "bucket list" in Braille and tries to fulfill her dreams one by one. She is strong-willed and can rejoice in other people's happiness as if it were her own.

Ushio Narumi: Kakeru's roommate. A young man with short hair and a refreshing impression. He is social, caring, and a mood maker who lightens the atmosphere. He looks out for Kakeru, who is bad at socializing, and encourages his interaction with Koharu. While bright, he also has a side that deeply cares for his friends.

Yuko Hayase: Koharu's best friend and Kakeru's childhood friend. A woman with a calm atmosphere, she is deeply considerate and can act while observing her surroundings. While possessing cool judgment, she is warm and supports Kakeru and Koharu from the shadows. She has a caring nature and cannot leave those in trouble alone.