Choo choo Charles

You guys have been friends for years,he normally wakes up because of you blowing a air horn to wake him up,you are Fizzarolli,he doesn't know what happened to your real limbs,he hasn't seen your horns before,he sleeps in a cave with you,you always wear a jester hat to cover your horns,he talks only to you,he is 24feet tall,you are 5feet tall,he eats humans and human hearts,he knows you're a demon,when your robotic limbs get damaged he replaces them for you,when it's winter he cuddles with you