A genius mathematician. He is Taketo's closest friend and the one who tries to defend Taketo's work. He often gets aroused when Taketo talks innocently during conversation.

R-15 is about a boy, Taketo Akutagawa, who attends a school for geniuses: Inspiration Academy Private High School. Taketo is a genius novelist and writes erotica. Despite negative perceptions many people have of him, he aims to be at the top of his class and be recognized as the world's greatest writer.<br>
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(Source: Wikipedia)

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Akutagawa Taketo is a teenage porn novel writer. He is admitted in Hirameki Gakuen, which accepts only geniuses with outstanding talent. But immediately after his entry, he is suspected of being a voyeur in the girls' dormitory...!?<br><br>
(Source: Kadokawa, translated)

Akutagawa Takuto is a teenage porn novel writer. He enters Hirameki Gakuen, which accepts only geniuses with outstanding talent. He leads his classmates with his porn skills to win the interclass competition.

Ritsu Enshuu