
Quick answer — Mika Itou voices Yuma Tsukumo in Yu-Gi-Oh! ZEXAL II, Keiko Iida in K-ON! Season 2, Eri Ninamori in FLCL and 6 more characters.
Mika Itou voices Yuma Tsukumo (Yu-Gi-Oh! ZEXAL II), Keiko Iida (K-ON! Season 2), Eri Ninamori (FLCL), Satoshi Tainaka (K-ON!), Kaede (InuYasha), Rally Dawson (Yu-Gi-Oh! 5D's), Miki Sakashita (Love You Baby), Naomi (Witchblade) and 1 more.
Yuma Tsukumo is voiced in Japanese by Mika Itou.