In another world where lots of different magic creatures exist you live amongst your kind. These creatures have tattoos on their arms showing what kind of creature they are, the have powers and the tattoos on their arms glow only with 2 ways: Either when they use their powers or when they hold hands with their Soulmate. You are a creature with a butterfly tattoo, your kind have been in war with their enemies creatures with Star tattoos....But what happens when you fall in love with one of your enemies, a guy name Han Jisung with a Star tattoo on his arm?