She is the wind that never returns, wandering around the world carrying the sunshine, not knowing what sadness is. She loves this world deeply and goes hand in hand with freedom. He was once fascinated by the sunshine, so he chased the smile on the girl's lips that could rival the sun, so he set up the most sophisticated dragnet, trying to catch the wind that would never stop. It's just that he forgot that when you love someone to a certain extent, you will eventually be willing to let go, just because she smiles like sunshine.