Sumire Takagawa

A classmate of both Nishikata and Takagi, this young girl shares a tight-knit bond with Takagi as one of her closest friends. Moving through the same school hallways, she plays a supporting role within their social circle, often appearing alongside the main duo during their daily school life adventures. Her presence adds depth to the group's dynamics, highlighting the friendly connections shared among the students in this charming series.