Allen: Alisceon Is My Little Sister

"Yes, your majesty the king. I have accepted Alisceon Gaia as my disciple. Therefore, I will assist her in winning the battle for the throne!"

Allen spoke with pride and elegance that was befitting of his status as the Supreme Mage while still maintaining his respect for the king.

Well, even if he didn't respect the king and showed disrespect, the king wasn't narrow-minded enough to take it as an offense since offending the strongest mage wasn't what the king wanted to happen.

The king knew that if that happened, only the surrounding kingdoms would benefit from that scenario. So even if the kingdom managed to defeat and execute the Supreme Mage, they would still suffer from the attack from other kingdoms due to their kingdom's military forces being weakened by the Supreme Mage.