Tandouji Aruma, a 17 year old student who prefers to live away from others due to an incident in the past, is contacted by the mysterious Aiba Ruri to use the power of the Sacred Seven inside him to defeat a monster called 'Ashi'.
Even after using the power of the Sacred Seven to defeat the Medusa Ashi, Aruma still has doubts about whether that power can be used for good. Even though Ruri explains to him how the Sacred Seven came to be, Aruma is not convinced he can help until he learns the true reason for Ruri's fight against the Ashi. Using this conviction, Aruma sets out to fight a new Ashi that has appeared as a massive typhoon off the coast of Japan, but he never thought that he would have to learn to skydive.
Ruri returns from London after buying a fine grade gemstone for Alma. During a routine trip home, her convoy is attacked by Knight, the one who caused the Darkstone incidents. Kenmi reveals his reasons of his research on the Sacred Seven.
Ruri and Alma participate for the school fair. However, things turn worse when a few of Knight's Darkstone snakes cause problems. Wakana converses with Ruri to know her a little more.
Tandoji and the Geology Club went to a camp. There, Kagami and Tandoji found a dark stone and informed Ruri about it. They managed to defeat it without the geology club members knowing.
Ruri invites Alma to eat lunch with her. Alma feels very annoyed by Ruri. Knight kidnapped Ruri to get a serum that will help him control the dark stone in him.
Alma is made fun of by her classmates at school. But it was also evidence that the prejudice against Alma had disappeared and the students around him had begun to accept him, and, Alma was beginning to establish a place in the school.
At Aiba's house, there was a change in Aoi who had been asleep for five years. According to Onigawara, the strong Sacred Seven power that Alma showed in the battle the other day resonated with Aoi and evoked change.
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.
