Satoshi Umino

As a dedicated science teacher and devoted owner of his beloved fat cat, Tonosama, this diminutive educator often faces scrutiny due to his habit of using stolen research data. Despite his small stature, which famously led Keita Ito to mistake him for a middle school student, he possesses a surprising, mysterious physical strength. This power was notably demonstrated when he effortlessly forced open a heavy door that had stumped everyone else.