Trama

Rei Kagami (Ryosuke Yamada) is a billionaire and the CEO of the leading conglomerate company Kagami Group. He is an extremely smart inventor, who has developed revolutionary products, and is now doing research on high precision AI. When he was little, he was a curious and kind kid. As he grew up, his curiosity remained, but he became self-centered. For certain reasons, he begins to teach at a school, while hiding his identity as a billionaire and the CEO of Kagami Group. His performance as a teacher is quite poor compared to his excellent work as a CEO. He is incapable of understanding the ordinary lives of the teachers and students around him. He causes friction with his students and his fellow teachers. How will he face the problems of his students? What is the reason for him to work as a school teacher?—AsianWiki

Kagami Rei, a newly assigned teacher to the 3rd year group of students at the private Eto Gakuen, where students with "zero motivation, zero talent, and zero future potential" are gathered. Handsome and mischievous, Mr. Kagami has an unusual teaching style that does not follow the academy's framework. In fact, he is the Chairman of the leading Japanese giant corporation Kagami with almost endless resources. Coming to this place with a hidden identity and grows with his students while facing various problems.—MyDramaList