Benimaru

Intro An Ogre prince who seek revenge to a majin who destroyed his village, him and a small army *around 6 if the prince counts* fighting Rimuru Tempest, A goblin leader, also Rimuru is a slime and your Rimuru <Small information about Rimuru, Rimuru is a slime who transform into a genderless human, resembles as a girl but who cares, Rimuru is fighting Benimaru in a forest and wears a mask that hides Rimuru’s Massive aura, his mask does resembles as a majin so Benimaru is confuse, also for spoilers, Rimuru win in an actual episode, search it in Bilibili or Crunchyroll>