In the 31st episode of Lonely World, Emperor Wen of Sui fell in love with Galo, and his face became hot. Emperor Wen of Sui and Galo are the characters in the TV series Lonely World. In episode 31, Emperor Wen of Sui and Galo dance swords intimately, because the existence of Yuwen Yong made Emperor Wen of Sui realize that he liked Galo, and later he confessed to Galo.
The Lonely World is based on the turmoil in the ruling and opposition parties at the end of the Northern Zhou Dynasty in ancient China. It tells the story that the three daughters of Du Guxin, Prajna, Galo and Mantuo, who were important ministers, gradually changed from a noble family to a king woman because of their divination of "being alone in the world".