That Time I Got Reincarnated as a Slime Season 1 Episode 21
Shizu-san's Students
Rimuru becomes the new teacher for Shizu's students. However, having been summoned into this world against their will and facing shortened lifespans as a result, the children's feelings are complicated, and they're reluctant to accept Rimuru. So Rimuru proposes a series of mock battles with each of them to ascertain their abilities and allow them to let off steam.
Guest Stars
Daiki Hamano
Bid (voice)
Yuki Arai
Captain (voice)
Airi Ohtsu
Older Sister (voice)
Ayaka Asai
Kenya (voice)
Shizuka Ishigami
Ryota (voice)