That Time I Got Reincarnated as a Slime Season 3 Episode 20 English Dubbed Episode Title: Nation's Opening Festival Episode Description: Class S is surprised to learn that Rimuru is the king of the monster nation while Tiss is too shocked to wake up upon learning of this. Hinata then arrives and Rimuru introduces her to Class S and explains her history, warning them to not insult her. She agrees to watch over Class S as she reminds them of Shizu. Hinata also reveals that Luminous is also coming since she was also invited. A concert begins, starting with an orchestra led by a young halfling named Takt, followed by a duet performed by Shuna and Shion...