X 3 in 1 Edition Volume 4 collects volumes 10-12 and features story and art by CLAMP.

Kamui and Fuma have made their decisions and chosen their sides, but at an appalling cost. A traumatized Kamui needs the kind of healing that only a powerful psychic can provide. He goes to visit the seer Hinoto, and although her visions bring him clarity, they also unearth painful memories from deep within his past.

Fortunately, there's time for reflection as both sides of the conflict regroup: Kamui and other Dragons of Heaven attend school at CLAMP Academy, while Fuma finds his place among the Dragons of Earth.