|Also Known as||Fire Fist of Apricot Flower High (Self-Styled)|
|Race & Species||Human|
|Affiliation||Apricot Flower High School|
Sunny is a student in Apricot Flower High School, a school that stratifies based Charyeok talents, 17 years after RagnarÖk. He is placed in Peony Class, a class for those talented in Charyeok. He is one of the four Divine Kings, the strongest students in the School.
Sunny is a darker skinned teen with brown eyes, stylised black hair tied into a blue-dyed dread bun at the back, shaven sides and a mop of yellow-dyed hair that falls over his eyes at the front. He appears to be a stylish youth, wearing baggy black three-quarter length shorts and a khaki parka over a white tee that has a star in the centre. Sunny finishes his outfit with a pair of fashionable boots and red goggles around his neck.
He is pretty arrogant and not afraid to show his wealth. He also suffers from inferiority complex against Dan Ah-An.
He is one of the most talented student in his school, with level of six. He is also known to have undergone "Boost Surgery" a procedure that increases one's borrowed power.
Superhuman Endurance: He is shown withstanding a punch from Bang Jong-Jin, the biggest and physically the strongest among Four Kings. Judge V stated he didn't flinch even after experiencing his "pressure."
- Electrokinesis: It grants Sunny the power to manipulate electricity, which is usually coloured yellow/orannge. The most powerful voltage he can create, so far, is a million. On one occasion, it is shown that his electricity change color into black, it is unknown if this change is purely cosmetic or indicating special properties. 
- Enhanced Speed: Thunder Dragon grants Sunny incredible speed, making him the fastest of the Four Divine Kings.
- Pyrokinesis: He used his boost surgery to add fire attribute to this charyeok. It manifested as a white-orange pattern on his left arm.
- Lightning-Fire Spear: He can create a spear made of mixture of lightning and fire.
- Electro Tree: A technique where sunny shaped his electricity into something resembling branches.
- His title seems to be a shout-out to One Piece, where one of the characters is nicknamed Fire Fist. It can also be a shout-out to Yu Gi-Oh's official card game, in which Fire Fist is a type of monster.
- Ironically, despite his title, his original borrowed power is thunder dragon. His fire-based ability comes from Boost Surgery.