Quick answer — Subaru Tougou voices Yui in MUSHI-SHI The Next Passage 2, Shirou Tanbabashi in Inari Kon Kon.
Subaru Tougou voices Yui (MUSHI-SHI The Next Passage 2), Shirou Tanbabashi (Inari Kon Kon).
Yui is voiced in Japanese by Subaru Tougou.