The ensemble cast is composed primarily of adults working within the creative industry:
The story follows , a professional light novel author who is obsessed with the "little sister" trope in fiction. Despite his eccentric fetish, the narrative serves as a "creator narrative," focusing on: Imouto sae Ireba Ii.
: It depicts the realities of writing, meeting deadlines, and the emotional toll of having your work adapted into other media. The ensemble cast is composed primarily of adults
: The protagonist, a novelist whose obsession with "imoutos" stems from past emotional trauma and an inferiority complex. Imouto sae Ireba Ii.