The hit manga The 100 Girlfriends Who Really, Really, Really, Really, Really Love You gets its first-ever spin-off novel! Rentarou loses his memory, Nano gets possessed by an alien, everybody gets isekai'd into Shizuka's favorite book, the cast pilots a giant robot—what on earth is going on?! Includes brand-new illustrations from series artist Yukiko Nozawa!

(Source: Seven Seas Entertainment)