Race: Human

Age: 23

Gender: male

Height: 178 cm

Weapon: sword

Occupation: Superhero

Affiliation: Hero Association

Partner(s): Bushidrill, Okamaitachi, Atomic Samurai

Level: A-Class

Rank: 2

Iaian is shown to be quick-tempered as witnessing the widespread destruction of A-city, an act he deems "unforgivable," enrages him. Also, upon being attacked by a mysterious alien, Iaian gives no quarter and responds immediately with an attack of his own.

Iaian makes his appearance only after saving a father and his son from being killed by Melzalgald after the father moves some rubble to get to his son in episode 10.