
Quick answer — Miharu Sawada voices Hikari Ogasawara in High School Fleet, Tsunemi Touko in Armed Girl's Machiavellism.
Miharu Sawada voices Hikari Ogasawara (High School Fleet), Tsunemi Touko (Armed Girl's Machiavellism).
Hikari Ogasawara is voiced in Japanese by Miharu Sawada.