To commemorate MAMIYA - Complete Collection's 1-year anniversary, a 208 page, 4k resolution art book is now available!
https://store.steampowered.com/app/3216010/MAMIYA__Digital_Art_Book/
MAMIYA - Digital Art Book includes character designs, illustrations, sketches and developer Kokoroten's comments with insight into the creation process of the game! It is delivered in a .PDF format.
We hope this art book will bring you even closer to MAMIYA.