Dragon drive

Earth and Rikyu have fractured into one another, and the barrier between them no longer holds. Takumi, together with his dragon Raikoo, is the one person capable of mending the damage to both worlds. He is currently evading Ri-IN, a sinister group that has taken a strange interest in Raikoo's kind.

He does not face this alone. Four people who fought in the earlier war on Rikyu have grown into adults and are returning to take up the struggle once more.