Drama also known as Dive into Her Love | Crush On His Brother; Under threat, she had to assume someone else's identity to marry into a wealthy family. Unexpectedly, she ends up entangling with her fiancé's brother – a ruthless man who strikes fear into everyone. Due to her fake identity and the threats she faces, she doesn't dare to break things off with him easily. So, she decides to play along with him. When the family that once hunted her entire family proposes a marriage alliance with him, their relationship hits a deadlock... How will their budding romance unfold?