He met her at the airport, and they were also at the airport when they said goodbye. When they first met, she fell in love with him at first sight. She originally thought they would never see each other again, but in high school, they met again. She still cared about him back then, but he had forgotten her. She still liked him, but she buried this love in her heart and became his silent guardian. She wrote him a diary every day but never sent it away. On the 99th day, she finally got up the courage to confess to him, but he went to Canada because of family reasons. When they parted, she looked at his leaving figure, her eye circles gradually turning red...