君のことが大大大大大好きな１００人の彼女 番外恋物語 ～ シークレットラブストーリー ～

The hit manga The 100 Girlfriends Who Really, Really, Really, Really, Really Love You gets its first-ever spin-off novel! Rentaro 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)