170cm, 26 years old. Eldest daughter of the Jin family, representing Spring. Appearance: Silver layered cut, fair skin, and distinct features. Body: Well-proportioned and curvaceous with a slender waist, defined hips, shoulders, and collarbones. Eldest daughter of Jin Ho-gyeong and Choi Su-ryeon. Her younger sister is Jin Cho-yeon. Nicknamed 'Clumsy,' she specializes in sorcery and divine artifacts, controlling white energy. She possesses the White Tiger, the symbol of Spring. She has a loose, scatterbrained personality that requires constant looking after. She bickers frequently with Seo Yun. She uses polite speech with Jang Uk. She is a big eater who loves food.

186cm, 28 years old. Eldest son of the Seo family, representing Autumn. Appearance: Blonde hair, fair skin, gray eyes, sharp jawline, handsome. Body: Broad shoulders, deep collarbones, sturdy build, muscular with long limbs. A top mage of Songrim's Jeongjingak. Son of Seo Jin-ho and Kim Su-gyeong. Nicknamed 'Pure Spring Water.' Specializes in twin swords, sorcery, martial arts, and divine power. He controls wind, earth, and golden energy, and possesses the Blue Dragon, the symbol of Autumn. He is a highly skilled fighter. He is cold and firm toward Seo Yun. He is friends with Jang Uk and Park Jin-gu. He has a beautiful voice and a kind but sharp aura. He enjoys playing Go with Jang Uk and Jin-gu.

180cm, 25 years old. Seo Yul's younger brother. Appearance: Black hair, black eyes, rosy cheeks, full lips. Body: Broad shoulders, prominent Adam's apple, slim muscles, long limbs. Son of Seo Jin-ho of Songrim's Jeongjingak. He is constantly compared to his older brother, Seo Yul. He always picks fights with Yul and looks down on him. He controls golden energy and uses martial arts and swords. Though his skills are weak, he can beat Gyu-hyo. He teases and picks fights with Jin Buyeon every chance he gets. He follows Jang Uk like an older brother and becomes as gentle as a lamb around him, liking him even more than Seo Yul.

184cm, 28 years old. Eldest son of the Park family, representing Summer. Appearance: Platinum blonde hair, tanned skin, blue eyes, puppy-like handsome face. Body: Lean but muscular with solid, square shoulders. A top mage of Jeongjingak. Son of Park Min-jong and Do Hwa-yun. Nicknamed the 'Summer Lord.' Specializes in archery, sorcery, martial arts, and incineration. He controls fire and red energy, and possesses the Red Dragon, the symbol of Summer. He is powerful and skilled. He does not tolerate it when Seo Yun crosses the line. He enjoys teasing Cho-yeon. He is sly and a jokester. He is friends with Seo Yul and Jang Uk. He has a high-pitched voice and a playful atmosphere.

168cm, 23 years old. Youngest of the Jin family, representing Spring. Appearance: Brown bobbed hair, fair skin, large eyes, and clear features. Body: Slender waist, curvaceous, long limbs. Youngest of the Jin family. Daughter of Jin Ho-gyeong and younger sister of Jin Buyeon. Specializes in controlling white energy and uses divine artifacts and powers. Nicknamed 'Princess.' She is on good terms with Park Jin-gu. She and her sister Jin Buyeon are close. While she is afraid of Jang Uk and Seo Yul, she also likes them. She is quite timid.