Katori, Mato

火鳥真斗

She serves as the homeroom teacher for Year 1, Class 2 at Yumegaoka. Additionally, she acts as the supervisor, adviser, and consultant for the Diving Club. She shares a mutual interest in scuba diving with Hikari. Upon first arriving at school, she had a competition with Hikari, which led her to realize they were diving buddies. Her car is a Nissan Cube (a mini MPV) named "Pokoteng 3rd-kun."
It is very possible that the same character in the manga iRoman Club shares exactly the same name with Katori Senkou's older sister. (Mangaka Amano Kozue tends to cross over blood relatives of main characters.)