Marker is a humorous and cheerful character who likes playing weird games such as Toss the Dirt and Eat the Dirt. He doesn't seem to be very intelligent, as he didn't know how to play Rock Paper Scissors. His crush is Stapy and he is very close to him but despite being the cheerful and quirky guy, he is far too shy to confess to Stapy. He has friends like Stapy who's a stapler, Foldy who's an origami, and Lightning. One of his abilities is that he can shift his hand into something like a square.