SHINDOL NO BUNKA JINRUIGAKU

College student Miyashita Naomi has it difficult as her cultural anthropology professor, Souichirou Itsuki, can't help but be interested in customs across the country. With this, she's taken along with another one of the professor's students, Sakura, to explore, survey and study those customs. However, these customs are quite suspicious.

(Source: Japanese publisher, translated)