Cheng Yu is a coward. After dating Lu Jing'an for six months, he ran away. He thought he’d gone far enough for Lu Jing'an never to find him. But one day, Lu Jing'an suddenly reappeared in his life and stayed for a very, very long time.
One ran, the other chased, and there was nowhere to escape.
They chose each other, and mended their broken relationship.