A young scribe intern from the Brotherhood of Steel, with all the scientific research data, fell into the world of Atelier Sophie. What will she bring to the alchemy to the Kirchen Bell? What will she bring to the stuggling lives on the wasteland upon her return?

Reiji Hino. The descendant of the one and only, Eiji Hino. He has taken up the mantle of Kamen Rider OOO and has found himself in a world where he meets two young girls striving to make their atelier the best in the entire kingdom! Can he help them along the way while also having to deal with his own new enemies? (Powerful OC)

Because of some unforeseen circumstances while being summon. Saito is instead sent to another world different from Halkeginia, where he helps out a young alchemist.