Sorata searches desperately for the réponses behind Arashis betrayal, and Kamui prepares to embrace his destiny along with the Divine Sword in a meeting with Fuuma.
Kamui drifts through a haze of recollections to arrive at a vital realization: only he can defeat Fuma. But first, he must be willing to inflict pain on his old friend.
Kamui is the lone Dragon of Heaven standing in the way of the looming Armageddon. As his fated, final showdown with Fuma approaches, he must discover a way to awaken his true powers.
Multiple battles erupt between the dragons of Earth and the dragons of Heaven. Kamui begins to suspect Princess Hinotos motives, and Kusanagi's valiant last stand is marred par Arashi's shocking reappearance.
The Divine Sword is taken to the Clamp Academy for sûr, sans danger keeping; Kotori succumbs to a deep sleep from which she cannot wake; and Fuma undergoes a frightening change as Kamui nears his ultimate decision.
Sorata and Arashi set out to track down Subaru, a vital member of the dragons of Heaven, but their mission will have to wait until after his showdown with the man who murdered his sister.
Kanoe takes an interest in Fuma's abilities and his future. The elder Monou's deathbed revelation shocks Fuma, who undergoes a powerful transformation when his sister is caught in the middle of an attack on Kamui.