For a key to open the arsenal, her parents were betrayed by her best friend, and the key disappeared, leaving her to wander the world alone; in order to find the key, and for revenge, she sold her marriage and married the son of her enemy. She poisoned her mother-in-law with her own hands. When she realized that everything was just a misunderstanding and wanted to stop, her husband found out...
He has always been filial, but in order to obey his mother's words, he married a woman he never knew and gave up the girlfriend he had been waiting for for many years. But unexpectedly fell in love with the queen. When he was debating whether to divorce or not, he discovered that his wife was the queen he liked. He thought everyone was happy, but he saw that his sweetheart was poisoning his mother...