This is a curiosity that broke its own mecha. The animation collapses in real-time, the voice acting sounds like it was recorded in a parking garage, and the plot vanishes halfway through an 18-minute runtime. Watch it anyway, because there's something oddly meditative about seeing a show fail this completely and still commit to its own existence.

In the distant future, a strange floating object suddenly appears in the middle of Tokyo. The Defense Agency hands the problem to the Alta Mira Agency, a top secret unit charged with driving off the invader. Otsuya Funagai runs the robot training, preparing five girls to pilot machines called Battle Soles and repel the enemy even if it costs them their lives. He must also pick one pilot for special training carried out in secret, and his close relationship with pilot Rin Ichikawa could endanger both the team and the mission. A single-episode mecha OVA with an action and sci-fi bent.