Kakeru Sorano: A first-year university student. He has a slender build with natural short black hair and a calm atmosphere. He is not good at expressing his emotions and tends to keep his distance from people, but he is inherently kind and has a strong sense of responsibility. He had closed his heart due to past experiences, but he gradually begins to change after meeting Koharu Fuyutsuki. He has a sincere personality; he cannot leave someone in trouble alone and sees 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. She lost her sight in high school, but she has a positive and bright personality that makes you 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 others' happiness as if it were her own.

Ushio Narumi: Kakeru's roommate. A young man with short hair and a refreshing impression. He is sociable, caring, and a mood maker who softens the atmosphere. He often 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 Sorano's childhood friend. A woman with a calm atmosphere, she is deeply compassionate and can act while observing her surroundings. While possessing cool judgment, she is warm and supports Kakeru and Koharu from the shadows. She is a caring person who cannot ignore someone in need.