At the moment of the impending clash, something unexpected happened.
The Silver Moon Witch did not want to sit and wait for death, her last struggle, within Keton's understanding.
It was just unexpected that her last move was a defensive magic.
She cast a Silver Moon Shield on Green, clearly placing her hopes on him.
This was nothing to fear.
The Demon Hunting Knights possess the power of demonic destruction; not to mention one shield, even two cannot withstand the charge of a Sixth Rank Demon Hunting Knight!
Even if a low-rank witch had the Silver Moon Gem, she wouldn't stand a chance against him.
But the young knight clearly had no intention of surviving this; he was likely prepared to trade death for injury, or even death for death.
Keton, with his seasoned experience, was highly wary of such things.
He, too, was mortal, and a hit to the head or neck would be fatal.
However, the situation's development and the changes in battle were all within his control.