What if Issei had manifested his sacred gear earlier in life? What if he and Ddraig became friends with Great Red before meeting Raynare? Trained in secret from a young age in preparation for his rival, Issei is shocked when it turns out to be a beautiful silver-haired girl who just transferred to Kuoh Academy with her blue-haired friend. Badass Issei x Harem x Fem Vali x Tiamat

What would happen if after sealing Trihexa, a change occurred in the everyday life of Issei? A change that will completely break him, a change that will put him into a new path, a change that would force the entire supernatural world to take him seriously? A change that will affect everyone, and everything in the world...