He and she were classmates in high school, so they couldn't have known each other without fighting! In the process of getting along, she gradually fell in love with him, but he didn't know it! Graduation party, unexpected bedfellows, he said he would take responsibility, but she decided to pretend that nothing happened! Until that accident, he could never stand up again. She wanted to stay by his side all the time, but he cruelly pushed her away. It would be ten years after they separated... Ten years later, everything will be revealed...