わすれなぐも (2012)

After acquiring an ancient book for a client, a young book shop keeper and his assistant find a little demon who was sealed inside a long time ago.

This story involves the shopkeeper Suzuri of Kokumondou who sells historic books and Mizuki, granddaughter of the land owner. When Mizuki releases a somewhat cute young spider demon out of a sealed book, the pair investigate the origins behind it.