|Relationship Status||In a relationship|
Kou Yagami is a main character in the series New Game!. The lead character designer of Eagle Jump. She was the character designer for the game that inspired Aoba to become one herself. She has a laid-back attitude, brutally honest, dense, a sweet tooth and somewhat a goofball; she is a genius at character designing, quite stern and a bit of perfectionist. Kou often works overnight to complete her work and sleeps at the office. Her birthday is August 2.
- When Rin comes down with a cold, Kou decided to take her home and look after her. Meanwhile, Umiko hears from Nene and Aoba about how they are often worried about each other,
- After missing the last train, Rin ends up spending the night at the office with Kou, discussing whether their game will succeed and trying out her unique style of sleeping, and was totally flustered and shy when she was noticed by her stripping her pants alone merrily, and asked her to turn around since she doesn't want to be seen by the later.
- At the office, She likes being massaged by Rin.