Chief Kaizu commands the International Crusader Police, an elite special forces unit confronting extraordinary threats. As the father of Yumi Kaizu, he oversees her pivotal role in encountering Osper, a psychic from the undersea civilization of Mu, and secures the outsider’s integration into their ranks. His leadership revolves around coordinating global efforts to counter Drome, a rogue psychic whose relentless schemes spark catastrophic crises.

A pragmatist at heart, Kaizu strategically harnesses Osper’s abilities to dismantle cases tied to Drome’s plots. His decisions prioritize maintaining order and neutralizing emerging dangers, guiding the unit with unwavering focus on tactical efficiency and collective security.