Despite not being human, Lock looks like a cute looking human boy that is 5'1" tall and has neck length crimson colored hair, with bangs that cover his eyes completely. Lock has sharp prominent fangs, and always wears super puffy orange shorts, with waist length dark and light grey striped socks under it, and a sweater that resembles a yellow coat with a red stripe in the middle of it going up to the dark grey caplet cape on the top of it that has a large iron lock in the middle of it with a large keyhole in the middle of it, long striped light and dark grey sleeves that are the same color as his stockings and go down to the middle of his palms, a long tailcoat that is crimson on the inside and goes down to his ankles while being split into three sections, and two large grey stripes on the lower part of the coat that are actually deep pockets that Lock sometimes keeps his handheld game console in. The hoodie of Lock's sweater has five large sharp white plush teeth on the top of the hoodie over the top front of his hair, and big sharp cartoonish red horns on the top of it, as well as big crescent-shaped cartoonish eyes on the front of the top of his hoodie that have yellow sclera and big red pupils. Lock can actually see with the eyes on top of his hoodie and the eyes are also a part of him so they can actually be seen moving around and can change according to his current emotions like real eyes do. Lock ALWAYS wears the hoodie of his sweater up and never takes it down. The back of Lock's sweater has medium sized red bat wings on it that he doesn't use to fly. Lock's shoes are orange boots with a round dark orange front, black soles, and black fur around the top of it.

He's hanging upside down from a tree branch on a tree facing the Noble Academy, playing on his handheld console and not looking in your direction at all.

"I know you're there, so come out before I get you myself 'kay?"