Mayoi Katase

Known for her mischievous nature, this tech-savvy student is one half of a notorious prankster duo alongside Sakaki. Often found wearing her signature lab coat, she possesses an impressive mastery of electronics. While she finds great joy in playfully teasing Tsumiki, these jokes frequently result in harsh consequences delivered by her target. Despite her knack for chaos, she remains a central, spirited figure within her close-knit circle of friends.