Su Xiaotang never expected that her perfect boyfriend Gu Yanzhou, who she had been dating for three years, would start the "daily amnesia" mode after an accident - he would treat her as a stranger he had just met every day when he woke up, and yesterday's sweet interactions would become "expired candy". In order to awaken her boyfriend's memory, Su Xiaotang was forced to start a copy of "Fancy Chasing Husband": today she is a gentle colleague who delivers love lunches, tomorrow she is a childhood sweetheart who shares childhood memories, and the day after tomorrow she becomes a "rice partner" together. But just when she thought it was just a long "love repeater", she discovered that Gu Yanzhou's amnesia was not an accident. There was actually a conspiracy behind being followed by a mysterious person and plotted by an old friend. While trying to conquer her boyfriend again every day, while trying to uncover the mastermind behind the scenes, Su Xiaotang said, "It's so difficult to be a lover in modern times"! Although Gu Yanzhou loses his memory every day, his heart is always moved the moment he sees Su Xiaotang, and he falls in love with her again and again as if bound by fate. In "Resetting Love" and "Tracing the Truth", the two unlocked the hidden bonds of childhood, and their love became stronger through repeated tests - it turns out that true love never needs memory to prove, because the heartbeat itself is the best password.