In a remote village territory of the kingdom of Lystia, there lived a pair of siblings from a lower noble family, the Orenstein family. The elder sister, Mary, was a lively girl who loved practicing swordsmanship with her father. The younger brother, Sien, was a shy boy who preferred staying in his room reading books. Despite their completely opposite personalities, they lived harmoniously under the care of their gentle parents. One day, Sien asked his father whether "magic" existed in this world. However, even their father, who was well-educated as a noble, did not know the term "magic" itself. Furthermore, the phenomena Sien was referring to, like various things from the elements of fire, water, wind, and light, were impossible in this world... From that day on, Sien appeared quite dejected. But one day, while he was at the lake with his sister Mary, he witnessed an incredible phenomenon that was "like magic" - "It's too early to give up now. If there's no magic, I'll just have to create it myself!" Sien began to research magic, gradually involving the people around him while making steady progress. Flames flying out, lightning running - it was all for the sake of using the "magic" he had longed for in his past life!