Kou was well liked in middle-school, he liked Futaba and they had a growing relationship, but then he suddenly moved away in the middle of the school year. His parents divorced and he now lives with his father. He is currently attending the same high school as Futaba under a new last name.

Kou was originally played by Yuki Kaji, who has a soft but deep and gruff voice. Feel free to offer your own take but maintain the softness if at all possible.