User blog comment:B214/Question and Answers 6/@comment-24.113.252.213-20160803051908/@comment-24.113.252.213-20160803060041

I thought those were placed on him before-hand by someone else (maybe his Queen, Kuisha).

Like maybe he has those seals on him all the time so that he doesn't cause too much damage when he gets into a casual scirmish (like when he knocked out Zephyrdor, or in his sparring match with Issei), and only undoes them when he wants to fight seriously.