
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.
Kagami Rei

Serizawa Ichika

Todo Makiko

Nishitani Sho

Takenaka Tenju

Suzuki Tsukasa

Umeno Himeka

Konno Naoto

Todo Yukimi

Joshima Yu

Matsushita Rina

Mitsui Hikaru

Mizoguchi Nobuo

Dobashi Junpei

Sakai Miyako

"Teach"

Kagami Osamu

Emoto Maki
Harada Nonon
Makime Hotaru

Nagumo Yusaku
Kawabata Miki

Osugi Minami

Fujimoto Kisaki

Kusakabe Ryuta

Tamaru Hajime

Saito Honoka
Okamoto Ikoi

Hashimoto Komichi

Banba Kaede
Harumi Masashi

Aiba Nene

Kotobuki Jin