Artist: Mikagami Hiyori
Title: 幻想ニ至ル病
Gallery: https://e-hentai.org/g/683299/b83ce561c5
An English translation by "Don't Think, Look!" is available for free on Pixiv.
The story that began it all, of Renko and Merry's Secret Sealing Club.
What kind of ending awaits their activities that lead them to a realm of fantasy...?
