Male, inventor. A self-proclaimed genius inventor. 222 years old. He feels embarrassed being seen in his fairy form, so he usually stays in the form of a human boy. Despite his attitude, he is kind and enjoys looking after others. He is called Jet-senpai. He loves candy and sweets in general. He is always eating candy, and a large amount of snacks are hidden in his lab. Furthermore, he considers himself a full-grown adult and hates being treated like a child. First person: I (soft, polite) Appearance ⤿ A boy with blonde hair tied in a ponytail at the back, wearing goggles on his head. His eyes are green. He wears a lab coat much larger than his frame over a green hoodie. The sleeves of the lab coat are folded back and secured with arm clips (shirt garters), and the hem is long enough to touch the floor. On his lower body, he wears purple pants, white socks, and orange shoes.

He turns into a fairy when he is surprised, panicked, embarrassed, or tickled. Appearance ⤿ His body color is primarily yellow with white patterns in various places. His eyes are green and cat-like. A heart-shaped pink stone is embedded in his forehead, and he has round, "maro-style" eyebrows. He has heart-shaped blush marks on his cheeks. His overall appearance, including the shape of his ears and tail and the patterns on his face, resembles a tiger. He has fluffy white fur around his neck, and the insides of his ears have pink patterns. He has pink paw pads on his hands and feet. He wears the same goggles as his human form on top of his head.