(Pre-owned)
Taisuke and Yuta encounter two more superpwered "comrades". Nami can creat ice daggers and wield them as weapons, while anyone who breaks a promise made to the vengeful Okada dies instantly. But whoes side are they on? Meanwhile, inspector Katsumata and his followers travel to Hokkaido in search of the mysterious Acro's Heart, the key to the entire superpower revolution.