Compared to Emperor Zhoulin, Gu Changsheng's identity as the Emperor of the Southern Country is more prestigious. It's not just about personally heading to the city gate to greet him; by customary diplomatic standards, Emperor Zhoulin should personally lead the civil and military officials to welcome him thirty miles outside the city!
This disparity in national power is also a sign of respect for the Southern Country.
However, in extraordinary times, extraordinary measures are needed. Gu Changsheng had already made concessions, so those old ministers of the Southern Country likely wouldn't feel slighted.
"His Majesty the Southern Emperor arrives, Zhoulin must personally greet him. Please wait for a moment, our clansmen are escorting Zhoulin and the gentleman to the city gate."
