The assassin stopped sparring with Kyoya when he confirmed that the sun was about to show its face. It was impossible to see it in this foggy land, so Kyoya was still in training mode!
His face showed off an evident desire to hone his abilities!
It was just knife thrust that Kyoya began to train, but the assassin was already astonished inwardly. He was even forced to use his skills to mask his emotions as Kyoya just learned the Assassin Craft too quickly.
It wasn't even one day, but Kyoya already crafted a sharp energy that wasn't flashy or obtrusive at all. This was a sharp Assassin Craft skill that hid one's powers. This was the reason why the assassin knew that Kyoya began learning his craft right now.
He himself wanted to pass it, so at some point, Kyoya would grasp it naturally.