Tandoji and the Geology Club went to a camp. There, Kagami and Tandoji found a darkstone and informed Ruri about it. They managed to defeat it without the geology club members knowing.

Almas relationship with Ruri causes him to be teased by his classmates, a sign that they have started to warm up to him. Gradually, Alma is finding his place at the academy. Almas still hesitant but Wakana is elated that people see him for who he is.

Theres been a change to Ruris sister, Aoi. Five years ago, as Ruris family, their butler Kagami and his son spend a fun-filled Christmas week together, Ruri and Aoi have a fight. While small in scale, it changes the destiny of the two girls.

Ruri was taken in to custody by Kenmi. Alma, Kagami and the entire Aiba Foundation declared war against Kenmi Group and rescued Ruri. Knight and Fei plans to use the vaccine on Zero to retain his mind and control over his Darkstone powers.

Kenmi's laughter echoes through the forest. Hes absorbed Number 0s energy and plans to consume Alma, who holds a purer power of the Sacred Seven. To stop Kenmi's ambition, Naito attacks. Their last battle surrounding the Sacred Seven has begun.