ヤミと帽子と本の旅人 タイピングトラベラー

Main character's librarian sister got sucked into some book. Protagonist dives into different book worlds in order to rescue his sister. [From [url=https://vndbreview.blogspot.com/2019/08/vn-of-month-june-2004-3days-michiteyuku.html]vndbreview[/url]]