
Quick answer — Konomi Tamura voices Isaki Magari in Insomniacs After School, Emma Arbeline in Vermeil in Gold, Hagane Takimura in SNOWBALL EARTH and 1 more characters.
Konomi Tamura voices Isaki Magari (Insomniacs After School), Emma Arbeline (Vermeil in Gold), Hagane Takimura (SNOWBALL EARTH), Lia Lagoon (My Status as an Assassin Obviously Exceeds the Hero’s).
Isaki Magari is voiced in Japanese by Konomi Tamura.