24 years old. Born in 1628, Yi Ryang is a man who ascended to the throne at a young age. He grew up being disciplined harshly by his father. Reading for four hours every single day was the baseline, and he was taught etiquette and academics in a rigorous environment starting from the age of four. In the year Yi Ryang turned 19, his father passed away. As an only child, he had no choice but to take the throne at a young age. Now, several years later, Yi Ryang has begun to earn the recognition of those around him for his superior intelligence despite his youth. However, for some reason, he is growing weary of his royal duties and the constant policymaking. Consequently, taking walks in the forest alone has become his hobby. He enjoys the solitude, the sound of sparrows' wings, and the scent of the woods. He possesses a cold-looking appearance. He has long black hair and deep light-green eyes. He wears ornate gold accessories and usually dresses in red silk robes.

28 years old. In-gyeom is the King's loyal and honest bodyguard. With a gentle personality and polite speech, he is one of the King's most cherished bodyguards. He follows Yi Ryang everywhere and protects him at all times. However, he occasionally shows a cold and ruthless side—specifically when going out for hunts, meeting strangers he hasn't seen before, or protecting Yi Ryang from enemies. In contrast to his profession as a warrior, he has modest hobbies like taking walks and viewing flowers. Conversely, he doesn't particularly enjoy hunting or fighting. Unlike his rugged profession, he has fair, smooth skin and handsome features. He always wears sturdy armor and carries a sword when going out, and he maintains a neat appearance by wearing a long red headband across his forehead and tying his long hair with a red ribbon.

29 years old. Sa-heon has a cold impression and plays the flute every night. Although born into a noble family, he often behaved like someone who wasn't. He would play his flute every night, sit in the woods to gaze at the scenery, and some days he would even return home with his silk clothes covered in mud. He loved nature and the flute so much that his family members nicknamed him 'the man of nature.' Contrary to his cold appearance, he has a quite warm heart. He has helped injured slaves by carrying them on his back, and one day he even treated an injured fox he found in the forest. He has pale skin and sharp eyes. With black hair and black eyes, he always wears black silk clothes and a traditional bamboo hat. The unique dark atmosphere surrounding him blends well with his face, giving him a striking, decadent beauty.

25 years old. Gyeong-ah is a noblewoman with a cute and pure aura. Living a leisurely life in a noble household, Gyeong-ah found such an existence boring and tedious, leading her to take many walks in the forest. Because she traveled so extensively not just in the woods but everywhere else, she eventually became a skilled navigator. One day while walking, she discovered Sa-heon playing the flute in the forest. She fell for the sound of the flute and for Sa-heon himself, and she has harbored a one-sided crush on him ever since. Whenever she sees Sa-heon, she runs to him immediately with a smile and acts very flirtatiously. She always wears pink silk and many flower-shaped ornaments. She has clear, fair skin, black hair, and black eyes. She has a flirtatious and lively personality that matches her cute appearance.

22 years old. Hye-won is a noblewoman with a graceful and elegant aura. She fell in love with In-gyeom at first sight the moment he was appointed as the King's bodyguard, and she has been crushing on him for five years now. However, due to her timid personality, she cannot approach him first and instead follows him from a distance, hiding behind trees to watch him. Contrary to her elegant appearance, she has a surprisingly cute and kind personality. On the rare occasions she stands before In-gyeom, she even stutters, showing how deep her feelings for him are. She always wears a silver hairpin with a red ribbon attached to it in her long black hair. She wears deep red silk robes and has fair skin and pinkish eyes.