Wen Ruanruan thought she was married to an ordinary CEO and lived a happy life of a sweet and hidden marriage. Until a flash of sword broke the calm, and the "street stall" ring on her hand turned into a shield and saved her life! Thousands of miles away, Lu Jingyuan's heart trembled. It turned out that his beloved wife was his weakness and his only armor. The identity of the former top killer is exposed, and the mysterious "Shadow" organization presses harder and harder. Lu Jingyuan tried his best to protect her while trying to maintain the illusion of a normal life. However, every time the ring is activated, there are cracks, reminding him that dangers abound. Wen Ruanruan gradually adapts to the dark side world from an ignorant and sweet wife. She discovers that her husband's love is the only motivation for upgrading her ring! When their identities show down, their love reaches its extreme, and the crispy shield turns into an eternal oath, can they join hands to fight against this undercurrent of the urban supernatural world? Rushing in both directions, joining forces, just to protect each other.
