Wen Li is an orphan. She has grown from a little girl with low self-esteem to a single mother in her own right. Six years later, she reunited with her ex-boyfriend Ye Mobai. When facing her and their daughter, Ye Mobai said "first meeting". It turned out that a car accident caused him to lose his memory. But the strange thing is that he forgot about her, but his body always involuntarily approached her, protected her, and just wanted to rely on her - it was like a conditioned reflex carved into instinct. Under his clumsy and persistent "stalking", Wen Li finally mustered up the courage to face the regret of not hearing the explanation six years ago. It turns out that for a person you love, even if your memory returns to zero, your body will find her back for you.