Alma Tandoji leads a reclusive life until the arrival of Ruri Alba, who is accompanied by her butler and maids. Ruri senses that Alma possesses the dormant power of Sacred Seven and requests that he lend it to her. However, Alma refuses and turns her away, recalling how his unusual strength caused harm to others in the past. As fate would have it, a malevolent creature made of Dark Stone emerges suddenly in this peaceful Kanto town. Alma's Sacred Seven power is the only hope to vanquish the threat, but he is hesitant to unleash it. In his hesitation, matters grow worse. Ruri, however, motivates him by raising her gemstone and unleashing his true potential with the words, "My Soul I give to you." With Ruri's determination firmly embedded in his mind, can Alma triumph over the Dark Stone creature?