Hopcorn+

Teacher Shinkai Kazuma is someone who isn't good at swordsmanship but secretly devotes himself to the research of youkai. One day, he catches Hina, his student, talking to a strange piece of pottery in an abandoned house. A youkai suddenly appears and Hina wishes to meet her dead mother so she can apologize to her. Kazuma and the youkai work together to fulfil her wish.