Eito Arakawa
Haruma Miura
Eito Arakawa

To solve the country's low birthrate problem, the Japanese government set up Otona Kōkō (Adult High School). Adults over 30 with no sexual experience are forcibly enrolled into Otona Kōkō by the government. Eito Arakawa is a 30-year-old single man. He graduated from a prestigious university and works at a bank. He has received recognition for his work there. He is also physically attractive, but he has never had sex. One day, he receives an entrance guide to Otona Kōkō.
Eito Arakawa
Haruma Miura
Eito Arakawa
Kansuke Gonda
Katsumi Takahashi
Kansuke Gonda
Pegasasu Yamada
Ryo Ryusei
Pegasasu Yamada
Sakura Himetani
Airi Matsui
Sakura Himetani
Karurosu Yu Kawamoto
Jutta Yuki
Karurosu Yu Kawamoto
Kiichiro Kakazu
Tetta Sugimoto
Kiichiro Kakazu
Mamoru Mochida
Bokuzo Masana
Mamoru Mochida
Maki Sonobe
Meisa Kuroki
Maki Sonobe
Masumi Madara
Maho Yamada
Masumi Madara
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