
Quick answer — Saki Yamakita voices Sion Toudou in PriPara, Rie Oohashi in Grand Blue Dreaming, Annei in An Observation Log of My Fiancée Who Calls Herself a Villainess and 4 more characters.
Saki Yamakita voices Sion Toudou (PriPara), Rie Oohashi (Grand Blue Dreaming), Annei (An Observation Log of My Fiancée Who Calls Herself a Villainess), Rakshata (Love Live! Nijigasaki High School Idol Club Season 2), Murina Atolm Zebrudia (Let This Grieving Soul Retire Cour 2), Tsuruko (Nyaruko-san: Another Crawling Chaos W), Maki Hayami (Hantsu x Trash).
Sion Toudou is voiced in Japanese by Saki Yamakita.