| Riiko, I can help you with you're homework.
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- The pretended brother of Toshiki. Knocks Night out when he whispers a code into his ear at the hotel.
- In reality he is the boss of Gaku, and sends out his Nightly 02 model to seduce, and have sex with, Riiko. He wants to see if it is a better model than the Nightly 01 series, and states that whichever model successfully sleeps with Riiko is going to be a finished product, and the one that fails will be disposed of.
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