Having easily thwarted the Eastern Empire's invasion, Rimuru wishes to endtheconflict once and for all and therefore heads for the imperial capital totake out thesource.Meanwhile, Yuuki has worked his way up inside the Empirewith the intention tostage a coup d'état and usurp the throne.Rimuru, however, comes to find that theEmpire's true power is on a wholeother level from what he’s seen so far...