That Time I Got Reincarnated as a Slime, Vol. 12 (light novel)

Threatened by Tempest’s rapid expansion, the Eastern Empire finally begins to strike
back. According to Chloe, the time-traveling Hero, there exists a timeline in which the
Empire defeats Rimuru and Tempest subsequently collapses. While Rimuru’s doom isn’t
set in stone, his victory isn’t a foregone conclusion either. And to make matters worse,
an Empire spy seems to have infiltrated Tempest...