A mysterious army appears in Kobe without warning. A state of emergency is declared and a fierce battle begins. Asuka fights with his partner Z/X Fierte to protect Kobe.

Ayase and her black Z/X Sieger are after the angel who has fallen from the sky. Asuka tries hard to protect her, but that puts his own life in danger.

Ayase and Sieger attack Asuka and Fierte with great ferocity. Asuka has no experience with Z/X fighting, so he is helpless against his veteran opponents.

One of the Twelve Apostolic Angels of the White World, Aquarius Gambriel, suddenly appears before Asuka. But Fierte is uneasy at the appearance of what should be a friend.

Asuka learns that it's Aina's birthday and asks everyone there to make a cake. But Ayase, Azumi and the other girls have never made one. The kitchen at Cafe Brocollo is in chaos.

Chitose and her partner Z/X Rindoh escape the military base in Tohoku and run to Fukuoka in Kyuushuu to escape. They find a paradise where humans and Z/X work hand in hand.