The main character is a young would-be idol singer and high school student, Maron Namikaze, who has superhuman strength.

In near-future Tokyo, a group called the Demon Seed has been antagonizing the city with its thefts and giant robotic Power Suits.

The opening theme, "Assemble Insert" (アッセンブル・インサート, Assenburu Insāto), had lyrics by and was composed by Kyōko Matsumiya, was arranged by Kohei Tanaka, and had vocals by Hiroko Kasahara, the voice actor for Maron.

The first ending theme, "That Guy" (あいつ, Aitsu), had lyrics and vocals by Kasahara, was composed by Matsumiya, and was arranged by Tanaka.

The second ending theme, "Flax-colored Dream Jar" (あま色の夢のつぼ, Amairo no Yume no Tsubo), had lyrics by and was composed by Matsumiyam was arranged by Tanaka, and had vocals by Kasahara.