Magical Librarian Ariana: The Book of Seven Heroes is a Fantasy Action RPG announced for the 2025 Compile Heart title lineup. Developed by Compile Heart, Idea Factory, and Hyde (creators of Digimon Survive), it was released on August 21, 2025 for the PlayStation 4, PlayStation 5, and Nintendo Switch in Japan.

The story follows Ariana Virellis, a librarian at a magic library, who is on a mission to retrieve the Book of the Seven Heroes as they've been tempered with. With the help of her special ability to repair books, Ariana sets out on a journey to uncover the secrets hidden in her library.