Once upon a time, there was someone who loved you for a long time, but the wind got so strong that I couldn't see you... This song by Jay Chou blew into everyone's heart like the spring breeze, evoking that innocent and ignorant memory in our hearts. Perhaps each of us had such a person living in our hearts when we were young, a person who was worthy of giving up everything to protect. But after many years, after the experience and polishing of real life, what is left of this childhood obsession?