With orders from the Senate to now work together, Rei teams with the Makai Knight Koori against a mysterious Demon Beast that only has the vague aura of a Horror. Though initially successful, it revives and kills Koori, causing Rei to retaliate as Zero until pain from the Seal of Destruction prevents him from landing the killing blow, giving the Demon Beast chance to escape. Rei speaks to Kouga the next day on how each of their seals are simultaneously counting down to activation, but they have no way of telling how long they have because neither Zaruba nor Silva can read the countdown cyphers. Resolved to continue their battles, the two Makai Knights decide to track the creature Rei failed to destroy together. Meanwhile Kaoru, anxiously racing to meet the deadline to submit her storybook, encounters Reo by chance while he too is investigating the Demon Beast. Though she is excited by having just thought up the end of her story, Reo regretfully tells her that he is leaving and will not see any of them for a while, though he is vague as to why he is leaving. Kouga and Rei track the Demon Beast from the stone's aura that made its armor to a warehouse, only to find not only that it is a dormant machine but also that is was controlled by the red-masked man. Forced at first to battle the red-masked man's G?ry?jin, the two fight the red-masked man himself briefly, though they are clearly outmatched. The red-masked man opts then to pilot Rigl, another of his G?ry? creations, believing it will bring a fitting end to both Makai Knights. Garo and Zero at first struggle, but they eventually fell the machine after calling on their respective Mad? Horses and with a display of team work. With the machine destroyed, Rei is able to distract the red-masked man long enough for Kouga to stab the mask, removing it to reveal the face of Reo. The red-masked man remarks he does not answer to the name Reo and vanishes, leaving the Knights angered and in shock.