Sensei was a teacher, watching over Kivotos, solving problems, protecting the people, and getting into all sorts of adventures and wacky antics all the while. Sensei was an adult responsible for trying to make a better world for his students to live in. However, he would often forget that he was also a person with needs and wants, which were overshadowed by his students' needs. He did not really care, as he believed everything was perfect as it was. But maybe he just needed someone. Ruined it all and show him the truth? And with him letting it all happen.