Volume 4

Recurring Characters

 * Izumi Masamune
 * Izumi Sagiri
 * Yamada Elf
 * Jinno Megumi
 * Kagurazaka
 * Takasago Tomoe

New Characters

 * Eromanga-sensei G

Locations

 * Izumi House
 * Crystal Palace
 * Takasago Bookstore