As an idol pursuing a rock life, Koga hates any conservative manners. He is ardent and impulsive, and is constantly dealing with adolescence-esque struggles, but he also possesses good sensibility. Koga's performances are dynamic and hot-blooded with a zealous singing voice that bursts with ambition. Koga is a member of UNDEAD at Rhythm Link. He aims to showcase only the bestest of rock together with his bestest of companions, and be an artist that transcends the boundaries of an idol. Lately, he has been trying his hand at composing
