Nyan

Nyan was once a house cat, who became a monster due to hatred of his owner. He disliked her affection and monsterized, becoming a Dragon-Level monster of the Monster Association as well as becoming a cadre of the MA. He has super strength, durability, speed and other usual powers. However his stand-out ability is his elasticity, which allows him to travel through cracks that are bigger than 3 millimeters.