Assemble Insert
English title: Assemble Insert
Japanese title: アッセンブル・インサート
Type: OVA
Episodes: 2
Source: Manga
Genres: Comedy, Sci-Fi
Studios: Studio Core
Producers: Tohokushinsha Film Corporation
Duration: 29 min per ep
Rating: PG-13 - Teens 13 or older

A criminal group known as Demon Seed terrorizes Tokyo with its vast armies of mecha. The local police is afraid to confront them, but one person stands in their way: Maron Namikaze, a 13-year-old idol singer with a catchy voice and unbelievable superhuman strength.

(Source: ANN)