Kunimitsu Shidō is a 20-year-old male light novel author published by ASCII Media Works, characterized by brown hair and aubergine-colored eyes, with blood type A. His given name combines "kuni" (country) and "mitsu" (light), while his surname "Shidō" translates to "lion child". He first gained recognition after his web novel won third place in the "Light Novel Martial Arts Tournament", securing publication. The story centered on sweets, reflecting his personal passion for baking confections. At the contest's celebration, he befriended fellow author Masamune Izumi over shared career interests and similar age. Cheerful and approachable, Shidō regularly bakes sweets for acquaintances. Though confident in his writing, he becomes shy around his editor, Ayame Kagurazaka, due to unreciprocated romantic feelings; Ayame dismisses his advances. Shidō also exhibits extreme alcohol intolerance—one incident left him ill and vomiting at the Izumi residence with no memory of the event. A notable misunderstanding shapes his behavior: he initially believed Masamune was homosexual, misinterpreting Masamune’s closeness to the illustrator "Eromanga-sensei" (whom Shidō assumed male) as romantic. This led him to decline sharing rooms or baths with Masamune. Shidō later expressed romantic interest in author Senju Muramasa, citing happiness when she enjoyed reading, but her focus on Masamune left his feelings unreturned. His narrative role consistently revolves around his profession, friendships, and comedic misunderstandings.