Origin
South Korea
Shin Yuna is Dayun's friend. When she left the school 2 years before the story begins to study in America, Dayun started being bullied. She transfers back to Dayun & Ijin's class after studying abroad for 2 years. Shin Yuna is the granddaughter of the owner of SW, the biggest corporation in South Korea. She is almost always accompanied by her secretary and bodyguard Goh Sukjoo whom she grew up with.
Mercenary Enrollment (Manhwa)
Yu Ijin was the sole survivor of a plane crash when he was little. After becoming a mercenary to survive for 10 years, he returns to his family in his hometown.
