Noboru Yamaguchi

Cobra, a famous charismatic space pirate with "psychogun" for a hand, decides to renounce his ways, and become an ordinary person with a new identity. His memories do come back and he becomes a space adventurer fighting villains.

Akutabe is a detective who summons demons to do his dirty work. While his methods might seem unorthodox, he always gets results.

Nerdy boy Mamoru is secretly a highly competent Ninja on a mission to protect his clumsy neighbor Yuuna.