Peach Boy Riverside Season 1 Episode 9 Mikoto and Mikoto ( Air Date 2021-08-26 ) Genre Animation, Action & Adventure, Sci-Fi & Fantasy category. Overview "Kibitsu Mikoto, AKA Peach Boy, sails to Ogre Island and defeats the ogre leader... but the story isn't over. One day after, he meets Mikoto, a half-human, half-ogre child...".