DeepOne [Regular Edition]

[Machine Translation] Let's fight together. The brother and sister were tossed around by the fate of the old families in the fabled struggle over the grimoire. The elder brother's name is "Shoya" and the younger sister's name is "Kyuka". Although they had a painful past, having lost their parents when they were young, they lived a small but happy life together. Their days were peaceful and warm. They thought that such a peaceful and warm life would continue forever... but one day, their faint hope was cruelly shattered. [The grimoire is a forbidden existence that has lived behind the scenes of human history for a long time, and has been hidden by mystery. It was never supposed to cross paths with people living a peaceful life. Suddenly, it appeared in front of the siblings, denying them their peaceful life together. They thought they were just an ordinary brother and sister, the kind of people you can find anywhere. They thought they were just an ordinary family. But then they learned. "They are the heirs of a grimoire that has the potential to shake the world" ( CERO Age rating: 15 and up )

「一緒に戦おう。 俺/私たちは、兄妹だから」＜魔導書＞を巡る、旧家達の宿業の争いその宿命に翻弄された兄と妹は―――その日、共に戦うことを決意する双子がいた。兄の名前は『尚哉』妹の名前は『九花』幼いころに両親と死別するという辛い過去があったもののふたりは、ささやかながら幸せに満ちた日々を過ごしていた。平穏であたたかな日常。そんな毎日がこれからもずっと続くと、兄妹は思っていた―――だが、そんな淡い希望は、ある日、無残にも砕け散ることとなる。＜魔導書＞永き時の中で、人の史実の裏側で息づき、神秘によって隠匿されていた禁断の存在。平穏な暇みを送る人間とは、決して交わらないはずだった、それは。突如として、兄妹の前に現れて、ふたりの穏やかな日常を否定した。ふたりはどこにでもいるような、ごく普通の兄妹だと思っていた。自分たちは何の変哲もない、ただの家族だと思っていた。しかし、彼らは知ることになる。"自分たちは世界を揺るがす可能性を秘めた、ある魔導書の後継者である、と"【CERO年齢別レーティング: 15歳以上対象】