'One day I'll be able to say yes to you without saying no to myself.' It began the usual way, Jaemin and his childhood friend were discovering love for the first time until she vanished. In an attempt to find her, Jaemin proposed a truce with his rival named Jeno and embarked on an adventure all over South Korea. On their way, they found an equally lost child named Renjun. Will they find answers to their questions, or will they find more than what they can handle?