Introduction: One day after Lin Feng and Zhao Yiran got married, Zhao Yiran cleaned up the room and brought Lin Feng's coat in from the balcony. There was a bang, and something fell out. It was Lin Feng's wallet. When he opened it, a crumpled piece of paper was revealed, which said "Wait for me when I come back." Zhao Yiran was very familiar with this clumsy handwriting, because it was the only thing she left for Lin Feng six years ago...