Art by Hato Moa(Moa810) from the Hatoful Boyfriend Guidebook/Official Fanbook
You can buy the guidebook from Amazon.co.jp, please support Moa!
Last, non-spoiler art from the Guidebook and it’s the best waifu Ryouta in the Torimi cafe uniform and Nageki. (There’s no Coolene in the book, aside from screenshots of HB)
