Saul had one long hour of conversation with Fabian and Andrea. Even though he expressed his willingness to form an alliance or even join the Tang Empire, Fabian and Andrea disagreed with him. The two had an attachment to their guild, and they could not bear to leave it to join another force.
The moment they heard what their Guild Leader said, both were shocked. Once more, their Guild Leader made the decision without consulting them first. Saul did not mean to hurt them. He did so because he saw the chance and took it.
However, Tang Shaoyang's reaction surprised the trio as they saw Tang Shaoyang frown deeper, clearly not taking the proposal well. Saul was offering the best proposal for the Tang Empire, further expanding the Tang Empire's force. It was not even an alliance, but a vassal, and yet The Emperor seemed not to like the proposal.