
Quick answer — Azumi Asakura voices Kumin Tsuyuri in Love, Chunibyo & Other Delusions, Yukiho Hagiwara in The Idol Master, Asia Argento in High School DxD and 16 more characters.
Azumi Asakura voices Kumin Tsuyuri (Love, Chunibyo & Other Delusions), Yukiho Hagiwara (The Idol Master), Asia Argento (High School DxD), Misaki Tobisawa (AOKANA: Four Rhythm Across the Blue), Ayana Kakinozaka (Asa Made Jugyou Chu!), Keika Kawasaki (My Teen Romantic Comedy SNAFU TOO!), Misaki Shokuhou (A Certain Scientific Railgun S), Meguri Shiromeguri (My Teen Romantic Comedy SNAFU) and 11 more.
Kumin Tsuyuri is voiced in Japanese by Azumi Asakura.