Sousou no Frieren Episode 21 English Subbed Episode Title: The World of Magic Episode Description: A thousand years ago, Flamme introduces Frieren to Serie, who was her master. Serie offers any single spell to Frieren, but Frieren declines, stating that the best part of magic is the pursuit. Serie criticizes Frieren's apparent lack of ambition but Flamme states firmly that Frieren will be the one to defeat the Demon King. This is because Frieren can envision a peaceful era, unlike herself or Serie. In the present time, Frieren and Denken's parties engage in battle. Lawine and Kanne do their best to win, but the difference in mana compared to Richter is too great and he manages to restrain them, he says he will spare them as long as Denken wins his fight...