Black Hole Planet 3 Alien
Black Hole Planet 3 Alien Agent
Yanagawa (柳川?), also known as Number 1, was an operative for the Black Hole Planet 3 Aliens who worked under Kuronuma. His job was to steal the Azumi statue of King Caesar from Professor Wagura, but he failed both times he attempted to obtain it and was killed by Agent Nanbara of Interpol.