On a cold snowy night, he slaughtered her entire family of one hundred and eighty-seven, but left her alone huddled under the case. After thirteen years of raising him, he was a strict master, a "sword demon", and a nightmare that she hated deeply but couldn't get rid of. It wasn't until the moment when the poison-quenched silver needle shot into his throat that the truth was revealed like blood - the so-called blood feud was actually a shocking scam by his father's generation that sacrificed the lives of the entire clan! The former murderer becomes the only guardian, and the ignorant orphan girl is forced to get involved in the battle for the secrets of the previous dynasty and the map of the national treasure passed down. "Buan Xue, live on, the protocol... Remains the same..." When the prince became a puppet, the prime minister pressed forward step by step, and the old friend turned into a poisonous snake... She held up the blood-stained sword and pointed it at the whole world: "Master, we will settle the accounts later. Now, whoever wants you to die, ask the sword in my hand first!" This is a forbidden master-disciple love that begins with hatred, ends with protection, and redeems each other in the midst of conspiracy and killing.
