Byun Baekhyun was the successor of the biggest clan in Great Britain--Montgomery. He was thrown away by his own family to Canada at the age of seven due to his disability: dyslexia. However, he ends up being in an orphanage and adopted by Jung family; Jung Ilhoon, Jung Yonghwa and Jung Krystal. The family brought him to South Korea, which in there, Baekhyun met a guy named Oh Sehun.

Randomly, Oh Sehun came to their life and said that he loves Jung Krystal, Baekhyun's adaptive little sister.

By that, he accidentally gets into Baekhyun's dark life and helps him out with everything.

When there’s always something Baekhyun manages to hide.

..but there, Sehun is.

Finding out almost everything.

Then the real question is; who is he? Who is Oh Sehun?