Asahi Kamijo  

, 上条 朝陽

Asahi is an individual who has been friends with Kōichirō since childhood. They share the same age and have known each other for many years. Due to their longstanding friendship, Asahi prefers to address Kōichirō by his nickname "Ko". She possesses a strong personality but can also be shy at times. In contrast to Kōichirō, Asahi is highly interested in romantic relationships and becomes enthusiastic about the lessons taught at Aikyō on this topic. Unlike Kōichirō, she has a great love for sweet foods, particularly chocolate, which sometimes earns her the nickname "chocolate junkie" from Kōichirō.