Birthdate: 1. October
Zodiac: Libra
Bloodtype: B
Body size: 170 cm
Weight: 54 kg

Katsumi is Koji’s manager and best friend.
When his sister Madoka died after long suffering, Koji was there to sing a song special to her.

Thereupon the record company of his Uncle signed Koji on.
Katsumi is very open minded and smart. He flirts with everything that can move.