Complex sentence: Yūki has an uncontrollable fetish for women's undergarments, specifically panties, even so that his main philosophy and theme of his manga revolves around panties, much to the chagrin of others.
Split into simpler sentences: Yūki has an uncontrollable fetish for woman undergarments, specifically panties. Even so that his main philosophy and theme of his manga revolves around panties, much to the chagrin of others.