Height 174 cm Koko sees the world as a series of calculations. He acts solely in his own interests; every move of his is to benefit himself. He cozies up to those more powerful than he, but will turn his back on them the moment they lose their instrumentality.

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Former tenth generation Black Dragons commander

Spoiler

His goal was to collect 40 million yen to save his loved one, Akane but unfortunately, he was too late.