Yoru ni Tsume wo Kiru Koto wa.
夜に爪を切ることは。
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-Description
From [Chibi Manga](https://www.mangaupdates.com/groups.html?id=3006): Yachi-san has a hobby of gathering an occult in the self study room. It's a hidden interest to everyone but one day, she got found out by the school council president, Yagami-kun who is in the same class as her! As a condition to keep quiet about it, they ended up spending the afternoon together after school...!?