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.

Crisis befalls the main characters and the Earth as well! How do they deal with the conspiracies that they have uncovered, while protecting the Earth too? (And what happens to the cliffhanger at the end of the previous episode?) In these final two episodes of Stratos 4 Advance are the exciting conclusion to the whole Stratos 4 series. The main characters will have to draw on all the resources they have, their friends and allies and their own sheer force of will, to "bring tomorrow to Earth," as one of the characters puts it.

After successfully returning to Earth on the renovated Stratos 4, the four main characters are visited by the Comet Blasters Chizuru Kubo and Annette Kerry, who bring them a shocking video. Meanwhile, Orbital Station 7 is in serious trouble... This two-episode OVA comes between the first and second seasons.

This is about Hiro Aida and his friends. Their daily life at school and first romantic encounters with all the fun and confusion. All these people are connected to each other through cell phone messages. The anime has 5 regular episodes and 1 Epilogue episode.