Kuuhaku Kitan ~Namanaru Soumatou~

The protagonist had a boring day until he found a book in an old bookstore he dropped in. When he was worried about the content and turned the page, the protagonist lost consciousness on the spot... and the destination he woke up... [Edited from [url=https://web.archive.org/web/20230510201842/https://play.google.com/store/apps/details?id=com.interest.blank]Google Play[/url]]