With the danger in Okinawa now passed, Keita, Kuro, and Akane return to Tokyo. Though Kuro and he were ultimately victorious in Okinawa, Keita worries that his own weakness is holding back the team and begins training even harder to face the battles that lie ahead. Unfortunately, more than danger is looming on the horizon. A roaming mototsumitama wanders into town, causing as much of a fuss as Kuro did when she first arrived in Keita's life!