Jisu has ruled the Kingdom of Silla as regent since King Beopheung died, keeping her young son Sammaekjong hidden outside of the capital Seorabeol and safe from enemies and assassins. As Sammaekjong comes of age, nobles, citizens, officials and Sammaekjong himself have all grown impatient for her to cede power. However the powerful nobles that tried to usurp power in the Kingdom continue to eye the throne and Ji-so fears the consequences of her ceding it. In order to break the power of the nobles, who have grown accustomed to their privileges under the bone rank system, Jisu plans to create a new elite, the Hwarang, that will cut across the existing power factions, and to bind them to Sammaekjong and the throne. As this new elite of male youths bond and grow they are unaware that within their number is their future king, Sammaekjong, and Kim Sun-woo, a commoner with a secret even he is not aware of.
After spending most of his time either helping his uncle in his farm or going on fishing trips with his only friend, Kim Sookjin had planned out how he was going to spend the last days of his summer vacation; he would play video games and eat good food all day peacefully. But destiny threw cold water, quite literally, on his plans when his aunt asked him to do something he despised a lot- delivery on a rainy evening. But not every delivery on a rainy evening can be bad, some can be worse. Especially when it's to the rich brat of their college, Kim Taehyun
There are two sides of a coin. One representing the faction of light. The other representing the corridors of the darkness. This is the enchanted, coming-of-age and heartwarming story about the young leaf creature, Leafy Storm and his band of trustworthy and loyal friends. As they go through a rigid development of growth, self-discovery and finding a purpose in doing the right thing. Their friendship is unbreakable. Their inner struggles are what define them at best. However, the tale is only the beginning.