1boy, 1girl, 2018, character name, demon boy, demon horns, demon tail, grey eyes, happy birthday, horns, light brown hair, long sleeves, looking at another, necktie, plums43, purple hair, short hair, shujinkou (yume-100), superbia (yume-100), tail, yellow eyes, yume oukoku to nemureru 100-nin no ouji-sama