The protagonist of the story, along with his sword Lamia, whom he can communicate with telepathically, finds himself suddenly pulled into the world of the Gressen Continent. Although his real name is Chun-hwa, when he encounters a ragtag group of travelers (who soon become his friends), he gives the first name that comes to mind: ID. Unbeknownst to him, by choosing this name, he sets a new fate for the world.
With his long hair, slender build, and delicate features, ID resembles a young woman and is frequently mistaken for one, which quickly angers him. He possesses immense, immeasurable, and incomparable strength, both physically and magically. Raised by his older sisters in his original world, he deeply loves and misses them since arriving on the Gressen Continent. He appears to be particularly fond of, yet also somewhat fearful of, his eldest sister, Oak-Bing.
