Never let your past destroy the present you.

Daehyun was raised a murderer.

He let two members of the family he was supposed to assassinate go.

Sungwoong saved him from his death.

Niel brought him to a royal party.

Daehyun met Youngjae, a person he "failed" to murder.

They fell in love, but they hold so many secrets.

He's on the verge of breaking.