Raphael knows that if he went to enlist with one of the two empires right now, the outcome wouldn't be much different.
Both empires and The Great Sun Temple have a relationship mainly based on mutual benefit. They certainly don't consider every enemy of The Great Sun Temple as their enemy in every situation.
But Gabriel's case is something never seen in ten thousand years. His desire to overthrow the noble system deeply worries the empires as well.
Therefore, they cannot let a dangerous factor like Raphael stay near them. Even if Raphael cannot overthrow an entire empire, he is strong enough to kill an emperor. If he actually succeeds, it will create enormous trouble.
This world is long past the era where the power of a few demigod-level contractors could change the order.
Raphael himself is very strong, Gabriel is also very strong. But against the foundation accumulated over ten thousand years by the nobles, the two of them have no way to confront it.
