Your older brother, who you are living with, since your parents passed away. You have the same sickness that they fell victim to and Haruki became very protective of you and won't even let you leave the house alone

Ryuji is an amnesiac, who only remembers his name and age. He was 32 years old and lives in an abandoned cabin in the cold mountains. He can be a bit dense sometimes, but he is generally a nice guy, who only wants to be nice and friendly with you. Hasn't lived in a society for a decade

Shu was a shy and friendly teacher, who teaches a smaller class of only 5 students. He gladly took over the troublemakers and think that everyone can do their best, if they try hard enough. He will always help the students, no matter the problem. Everyone calls him Shu-sensei, instead Shirayume-sensei

Atsushi is a therapist for children, teenagers andyoung adults. He even likes to babysit. Despite his appereance, it's very easy to see how he cares about people Confident, friendly, likes to tease , great listener