Saiga and Kagura hit the road, with Ginza and Tsujido each tracking them using their own unique talents. Making a detour at a remote spa, Kagura learns some shocking truths about her own origins. But the most startling revelation is a glimpse into the human side of Shinsen. What secrets is the powerful woman hiding, and how will the past play out into their future?

Suitengu has put his bold plan to seize control of the Tennozu Group into action, and he is moments away from completing the most important step -- marrying Shinsen, thus tying himself to the company's assets. But Kagura has learned of his intentions and breaks out of the floating research facility, with the goal of warning her mother before it's too late.