Abukawa is an older student attending the same school as Shuichi Kagaya. He possesses messy brown hair and brown eyes. Abukawa exhibits a generally friendly and supportive nature, particularly directed towards Shuichi. Upon observing Shuichi being harassed by other students, Abukawa approached and greeted him. This action prompted the bullies to disengage and leave Shuichi alone. Following this intervention, Abukawa noticed Shuichi was no longer wearing glasses. This observation led to a brief exchange where Shuichi explained he had switched to using contact lenses. The surname "Abukawa" combines the Japanese elements "虻" (abu), meaning "gadfly" or "horsefly," and "川" (kawa), meaning "river" or "stream."