Han Sen's desire to perform Moon had little to do with satisfying Kriman.
Han Sen thought learning Moon was a challenge from Yisha, so he wanted to prove to Yisha that he was a genius. He didn't want her suspicions taking root.
Han Sen wouldn't have dared to perform Moon before today, though. After all, he wasn't smart enough to learn something from a brief look. He had practiced Moon for quite some time, and he knew that if he had done it prior to seeing Narrow Moon Knife, the quality of his performance would not have befitted a genius.
Examining Narrow Moon Knife changed this. That was why Han Sen was now confident to perform Moon there. He was confident he could quell Yisha's fears now.
"Moon?" Rebecca and Du Lishe were shocked; it was Moon Wheel King's geno art, and they knew it, too. They had learned it from Moon Wheel King himself when they were young, and it was something they were still practicing with.
