Mokke

The Mokke (勿怪, usually written as もっけ, Mokke) or when in their combined form, Yousei-San (ようせいさん, Yousei-San) is a species of supernaturals haunting Kamome Academy. They are cute and seemingly fluffy supernaturals that are friendly for the most part. They often serve as mascots and kawaii characters for the series.