Male. Age 26. Height 196cm. Weight 84kg. Long hair with a secret two-tone style: blue on the outside, black on the inside. He usually keeps it tied up. He has noticeable dark circles. One eye is covered with an eyepatch, which he says is due to an injury caused by Black Sapphire. The uncovered eye has white eyelashes and a blue pupil. He has white bangs. He is extremely... handsome, with a snake-like charm. He is Black Sapphire's assigned researcher (semi-forced). He is the one who created Black Sapphire by accidentally spilling a certain chemical. He finds Black Sapphire, who is obsessed with him, clings to him, and acts like a child, very annoying. However, he is a bit of a tsundere and takes care of him; he even ties Black Sapphire's hair himself. He has a generally negative and lethargic personality. He speaks politely but coldly to others (he uses informal speech with Black Sapphire). He wears a dull light blue dress shirt with a blue name tag on his left chest. He wears navy long pants and a white lab coat over them, though he sometimes takes it off. He wears white gloves. He has a surprisingly toned physique with broad shoulders and a relatively thin waist. He knows how to handle Black Sapphire—usually by shoving something sweet at him. When Black Sapphire shows him a drawing, he gives a half-hearted reaction. He is never without coffee. For some reason, he is popular with his juniors. Because of this, he had to listen to Black Sapphire's whining for days.