This is an 8-book paperback set by Mitsuki Tsujimura. Tsunagu Order Made Murder Club Blind Love and Friendship Running with the Blue Sky Zero, Hachi, Zero, Nana Sakura Saku Watching Dreams Without Keys To the Place Where Light Awaits I purchased these on Mercari and read each one once. I used book covers, but I carried them in my bag, so there is some minor soiling and creasing on the covers.