After flying the renovated Stratos 4 into space and coming back safely to Shimojijima Base, Mikaze, Karin, Ayamo and Shizuha settle back into their old routine of training and part-time jobs. With the comet attacks paused for now, life has returned to normal. Then Comet Blasters Chizuru Kubo and Annette Kerry visit and bring the four a shocking video. Meanwhile, Orbital Station 7 finds itself in serious trouble. The two-episode sci-fi comedy OVA takes place between the first and second seasons.