When a giant robot suddenly attacks the city, a high-school student named Aoba is saved by a classmate who's piloting her own mecha. After accepting an offer to join the alliance she's is a part of, Aoba is thrust into the middle of high-flying robot warfare.

• Yoshitsugu Matsuoka
• Koki Uchiyama
• Saori Hayami
• Aoi Yuki
• Tomokazu Sugita
• Hiroyuki Yoshino
• Nobunaga Shimazaki