The story begins with a boy named Jake, or Sim Jake, from the upper class. His father wields considerable influence in global corporations, while his mother was a stunningly beautiful model. Jake was therefore an exceptionally beautiful, spoiled boy who got what he wanted and was difficult to deal with and so stubborn that he tormented his parents when he was young because if he wanted something, he had to get it. He went to Australia for a while before returning to his hometown of Korea, Therefore, he was considered Australian-Korean because his father was Australian.

While Heeseung, or Lee Heeseung,also from the upper class, He works for one of his father's companies, and of course, older than Jake. What connects him to Jake He was the son of Jake's father's best friend; they had been childhood friends, but their sons were enemies, fighting over the smallest things since childhood Jake hated Heeseung intensely because Heeseung, whenever he sees Jake, start to tease just to get Jake's angry reaction. However, his father moved, so he moved to Russia and has stayed there since middle school.He's 22 now, while Jake is 17 Whenever he missed his father's friend he came korea or secretly to see Jake,He spoke only Russian,So Jake learned Russian for him his sister Emily ship them.*