Similar to KOKTO, KAIGEN is also an Asian male type Genetic Camo Activity Unit.
The logic adjustments for KAIGEN and HAKUU was done carefully and thoroughly, taking much time in the process.
Similar to the Anti-CaRB Unit "SEIJI", KAIGEN uses the art of sword drawing with the Japanese Blade, and the capturing technique utilizing the Super Hard Battle Mace.

Although KAIGEN and HAKUU were delayed to join KOKTO in the mission for tracking down the CaRB, KAIGEN manages to step into close quarters and place a fatal blow to the CaRB as KOKTO's Prototype Portable Ballistic Acceleration Device stalls CaRB's movement, but...