Chuck

Chuck is a mysterious creature resembling a small green dog, filling the role of pet and helper to Panty and Stocking. Despite routinely being used as a punching bag by the two sisters, he possesses a remarkable ability to regenerate at high speed, bouncing back from every beating. He also carries out the special duty of receiving divine thunderbolts from heaven and producing sacred oracles. His body is covered in zipper-like structures, which allow him to undergo a transformation—known as flipping—into a fearsome hellhound form capable of providing powerful support in battle.