居庸関
It was said that, as the soldiers at Wei were not promptly rotated back to Lulong's capital You Prefecture () after a number of years, they became resentful, as they missed their families. In 893, when Li Kuangwei was himself overthrown in a coup by his brother Li Kuangchou, Liu decided to take advantage of the confusion by leading his army to attack You Prefecture. However, when he reached Juyong Pass, the headquarter's army defeated his. He thereafter fled to Hedong Circuit, where he was treated well by Hedong's military governor Li Keyong.