貴族の庶子として虐げられていたテオドール＝ガートナーは、事故で死にかけた際に『前世の記憶』を思い出す。前世の記憶と共に魔法の使い方も思い出したテオドールは、従者の少女グレイスと共に家を出て、異界にも繋がるとされる迷宮都市タームウィルズへと旅立つ!!
When Theodore was dropped into a waterway by his half-brother, he suddenly recalled the memory of his past life. He had been a Japanese citizen known as Kirishima Kagehisa, placed inside VRMMO character he had made in Break Force Online. “Theodore” is a Combat Mage that Kagehisa played within BFO, and he realized his skills were progressing well even in this other world. Theodore, who had lightly brushed off his half-brother to make his own place in the world, had ventured off to the large labyrinth existing at the Boundary City, Termuilles.
