Stratos 4 Advance
Genres: Comedy, Sci-Fi
Type: OVA, Episodes: 6
Aired: Mar 5, 2005 to Jan 27, 2006
Studio: Studio Fantasia
Source: Original
Rating: PG-13 - Teens 13 or older
Synopsis:
Having failed the Comet Blaster exams mysteriously, Mikaze and her friends are sent back to the Shimoji Island base, where, with three new Meteor Sweeper trainees around, they have been promoted to instructor positions.

Meanwhile, more comets are on their way to Earth, and the mysteries behind the rift in the Cosmic Emergency Management Agency—as well as the alien parasites—begins to unravel.