flower expert yoongi and sociology major hoseok live in a world where one's soulmate has the same flower birthmark as the other. both boys are red camellias, the rarest flower in the world. after coincidentally meet each other one rainy afternoon at a bus stop, they end up seeing each other everywhere else. later on, as they get to know one another and learn lessons about love, both boys will find out the truth behind what it means to be a red camellia.