
Quick answer — Sayako Toujou voices Mai Yasaka in ONIMAI: I'm Now Your Sister!, Paca-san in Long Riders!, Jun-chan in Recorder and Randsell and 3 more characters.
Sayako Toujou voices Mai Yasaka (ONIMAI: I'm Now Your Sister!), Paca-san (Long Riders!), Jun-chan (Recorder and Randsell), Kaede Hiiragi (Inugami-san to Nekoyama-san), Karasu (Strange+), Masashi Mikuni (Strange+).
Mai Yasaka is voiced in Japanese by Sayako Toujou.