Susie and Undyne from Deltarune and Undertale HD Wallpaper

Two female characters, Susie and Undyne, are depicted in a close-up shot. Susie, on the left, has pink scales and purple hair, holding a large weapon. Undyne, on the right, has blue skin, red hair, and an eyepatch, wielding a glowing blue spear. Both characters have sharp teeth and appear ready for battle against a dark red background.