Complex sentence: She was also under the false belief that "winging" meant having sex with an Ashikabi; this misunderstanding was cleared up after the two finally met, and she decided to become his Sekirei.
Split into simpler sentences: She was also under the false belief that "winging" meant having sex with an Ashikabi. This misunderstanding was cleared up after the two finally met, and she decided to become his Sekirei.