Tensei shitara Slime Datta Ken Episode 21 English Subbed Episode Title:Shizu-san's Students.Episode Description:Shizu's students don't show Rimuru much respect so he decides to show them the difference in their skill in a series of duels. Kenya uses fire magic, Chloe water magic, Gale fires magic bullets, Ryota uses body enhancements, and Alice uses puppetry to control toys to attack him. They lose and accept him as sensei. Rimuru visits Treyni, believing the children will survive if inhabited by superior spirits since Shizu was Summoned as a child but lived to adulthood, possibly because of Ifrit...