Qi Peijia
It's been so long that I had completely forgotten what grade of Mechanical Sense Han Xiao had. I can't believe it was as low as Elementary. I'd thought it would be a bit higher. I can't imagine how much stronger Han Xiao is now. He should be able to hold his ground against Manison now, right? (Unless that old goat has a few more tricks up his sleeves.)
He should have taken the Luck Glow. It's not easy to obtain but it would make everything else easy to obtain, even Perfect Mechanical Sense. If he is so worried about mission completion cards he can use luck curse to lower his luck, then accept rewards. As well, luck curse isn't a great trump card, it only works because HX has devastatingly low luck, if his luck was higher it would be a constant similar effect, not a sometimes effect on one enemy.