
Rei Kagami (Ryosuke Yamada) is a billionaire inventor and CEO of Kagami Group, renowned for revolutionary products and cutting‑edge AI research. Though once a kind, curious child, his ambition made him self‑centered. For undisclosed reasons he takes a teaching job, concealing his wealth. As a teacher he struggles, unable to relate to the ordinary lives of his colleagues and students.
Does Billion x School have end credit scenes?
No!
Billion x School does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Billion x School, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Mirai Shida
Mitsui Hikaru

Masachika Ichimura
Kagami Osamu

Ryosuke Yamada
Kagami Rei

Miyu Matsuki
Makime Hotaru

Haruka Kinami
Serizawa Ichika

Ryotaro Sakaguchi
Mizoguchi Nobuo

Miki Mizuno
Todo Makiko

Megumi
Sakai Miyako

Yumi Adachi
"Teach"

Munenori Nagano
Dobashi Junpei

So Okuno
Joshima Yu

Arisa Matsunaga
Fujimoto Kisaki

Azusa Ōhara
Todo Yukimi

Rintaro Mizusawa
Nishitani Sho

Kanami Ohkuma
Harada Nonon

Genta Matsuda
Konno Naoto

Yamashita Coki
Takenaka Tenju

Koya Matsudai
Harumi Masashi

Rina Miura
Aiba Nene

Haru Kashiwagi
Suzuki Tsukasa

Juri Kosaka
Umeno Himeka

Anna Kurasawa
Matsushita Rina

Kawaguchi Aoi
Emoto Maki

Omasa Rin
Nagumo Yusaku

Tadenuma Yui
Kawabata Miki

Rina Komiyama
Osugi Minami

Sunada Masahiro
Kusakabe Ryuta

Kosaku Koizumi
Tamaru Hajime

Hirano Ruri
Saito Honoka

Ai Hayase
Okamoto Ikoi

momoca
Banba Kaede

Ryutaro Imai
Hashimoto Komichi

Shunsuke Sato
Kotobuki Jin
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