> To save her critically ill mother, the mute Chu Yuhan takes her younger sister's place and marries into the wealthy Lu family, becoming the “bride of good fortune” for Lu Tingshen, its ruthless head.
> Under a three-year contract, she is an empty shell with no other choice in his eyes, a pawn he uses to test the truth.
> The moment she signs “I do” in sign language at the wedding, a storm rises in his eyes.
> The butterfly-shaped birthmark beneath her collarbone is identical to that of the Lu family's daughter, who vanished with her mother twenty years ago.
> The jade bangle carved with a dragon, which her mother protected with her life, is the only piece of evidence missing from the Lu family massacre.
> Lu Tingshen imprisons her with his coldness and tests her with secrets, yet shields her with his own body when an assassin takes aim.
> Chu Yuhan hides behind her silence and presents herself as fragile, yet finds her mother's bloodstained final words in the basement.
> As the contract's deadline draws near, the murderer who has been lying low raises the blade once more.
> Only then do they understand that this marriage, born of a conspiracy, has already grown into a bond deeper than blood amid suspicion and protection.
I thought I was entering a cage, but I became your only accomplice.
I came closer to you with the truth as my blade, only to hand you my weakness with my own hands.
[In the midst of silence, love resounds louder than thunder.]
