
Quick answer — Maria Abo voices Megu in Pseudo Harem, Taishou in mono, Francois in The Frontier Lord Begins with Zero Subjects and 2 more characters.
Maria Abo voices Megu (Pseudo Harem), Taishou (mono), Francois (The Frontier Lord Begins with Zero Subjects), Osanai Ani (RPG Real Estate), Utaki Irie (Killed again, Mr. Detective.).
Megu is voiced in Japanese by Maria Abo.