The ensemble cast is composed primarily of adults working within the creative industry:
: The protagonist, a novelist whose obsession with "imoutos" stems from past emotional trauma and an inferiority complex. Imouto sae Ireba Ii.
: Similar to works like Shirobako , it provides a look into the publishing world, including the roles of editors, illustrators, and tax accountants. The ensemble cast is composed primarily of adults
: Itsuki’s younger step-"brother" who manages the household. A central plot point involves Chihiro hiding the fact that she is actually a girl from Itsuki. A central plot point involves Chihiro hiding the
: A fellow successful author and Itsuki’s rival/friend, whose experiences with a poor anime adaptation of his own work illustrate the industry's harshness. 3. Publication & Media The Power of Otaku Media! - Imouto sae Ireba Ii.
: It depicts the realities of writing, meeting deadlines, and the emotional toll of having your work adapted into other media.
