![Keigo Hayama](https://cdn.noitatnemucod.net/thumbnail/400x400/100/101892b8df190fbb55ff947a28125520.jpg)
Keigo Hayama
叶山圭吾
Nayu's step-brother who has been looking after her since their parents died. He works as an underwear designer and often gets Nayu to test out his latest products.
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Chu-Bra
Supporting (Role) TV
![Sakurai, Takahiro](https://cdn.noitatnemucod.net/thumbnail/100x100/100/b81690babbec2256662931864d069e4c.jpg)