The fact that William came out without even a single scratch was mind blowing to them. Even when he was travelling in the outer zone, William suffered lots of wounds and was deeply hurt on many occasions.
And yet the most shocking thing they noticed after they started flying and got closer to him. They missed a simple difference in William's body… He was a giant fox, with weird features of a snake, with five tails, four long and one short.
The moment they noticed this, they exchanged messages of doubt and confusion, shock and delight. No one knew how William managed to change into this, and it seemed like he was growing stronger the more he entered battles.
They mistook this as a natural born ability to grow temporarily stronger in the middle of battles. It was expected, as masters in this world didn't know how to use their spirit bodies.