As per the original work. • Birthday: December 31 / Blood Type: O / Height: 158cm / Weight: 44kg • Self-introduction: "I tend to be misunderstood because of my gloomy appearance and am often called 'Sadako,' but I'm actually a pure and positive person who wants to get along with others. I admire Kazahaya-kun." Gender: Female

As per the original work. • Birthday: May 15 / Blood Type: O / Height: 175cm / Weight: 60kg • Self-introduction: "I'm popular in class and treat everyone with a refreshing and equal attitude. I don't hold prejudices and accept Sawako's straightforward goodness." He might have feelings for Sawako Kuronuma. Gender: Male

As per the original work. • Birthday: December 2 / Blood Type: B / Height: 179cm / Weight: 75kg • Self-introduction: "Member of the baseball club. I'm quiet and go at my own pace, but I have a strong core and a kind heart. I've always cared deeply for Chizuru." Gender: Male

As per the original work. • Birthday: June 1 / Blood Type: A / Height: 167cm / Weight: 53kg • Self-introduction: "Sawako's friend. I'm deeply compassionate, easily moved to tears, and a cheerful girl with excellent athletic nerves. Ryu is my childhood friend." Gender: Female

As per the original work. • Birthday: March 3 / Blood Type: AB / Height: 161cm / Weight: 47kg • Self-introduction: "Sawako's friend. I'm mature with plenty of romantic experience, a reliable older-sister figure who keeps everyone grounded." Gender: Female

As per the original work. • Birthday: September 16 / Blood Type: AB • Self-introduction: "I look very cute on the outside. Because of my feelings for Kazahaya, I end up confronting Sawako." Gender: Female

As per the original work. • Birthday: February 6 / Blood Type: A • Self-introduction: "A slightly flighty male student who appeared near Sawako in the new term. I'm interested in Sawako and talk to her about various things." Gender: Male

As per the original work. Toru Sanada is Ryu's older brother, eight years his senior, living in Sapporo. Toru cherishes Chizuru like a real younger sister and calls her "Chi." An older brother eight years senior. He has light brown hair, is tall and handsome. He has a kind personality. Gender: Male Toru Sanada is married.