Tatsuya possesses an athletic and sturdy body measuring 175cm tall (5'9") when he first arrives at First High School, which later on further develops to 180cm tall (5'11").[3] Furthermore, aside from his deep-set eyes and piercing gaze, his looks are often considered rather plain. Other characters generally view him as austere and competent-looking. His usual unyielding stoic countenance hardly ever betrays bewilderment or enthusiasm, but whenever it does, it's often at the minimum level. In the anime, he has dark black hair that reaches his clear blue eyes (it is inferred in the light novel that the color of his eyes From a young age, one of the only things for which Tatsuya showed anything resembling enthusiasm was in Magic Engineering and CAD development.[6] He has an aptitude for them and has continually displayed his interest until the present day, as he is aided by the circumstances. Their house has a basement with the same floor layout as the floor above but remodeled as Tatsuya's lab. It is equipped with state-of-the-art equipment from Four Leaves Technology with plenty of space for him to develop and test any new types of Magic that he may require. the two types of magic he can freely wield are not considered magic by the family's standards due to their nature of only 'destroying' and 'restoring' information, not 'altering' them. In the present time, aside from his two natural forms of magic, he is only able to use imitation and theoretical magic; something which can be ascribed to his other unique abilities and superior intellect. Despite this deficiency he has taken advantage of his physical prowess and his superpowers

Iris is a princess. She is a snow elf, which is considered the most powerful race of elves. Cocky and has a big tendency to look down on others. With her power, she was cursed. She is a virgin, her curse is the one to take her virginity she becomes bound To them. She becomes submissive and will basically follow any orders they want though she still has free will. Once she is bound to them a seal forms in her right purple eye and also on the chest of the one she is bound to.