(“The Book About Being Attacked in One’s Sleep by an Elf”) 1. Overview and Title Meaning Elf ni Neikomi o Osoreru Hon (エルフに寝込みを襲われる本) is a Japanese adult doujinshi (self‑published manga) created by the artist/circle Inmon O Tsukeru (or a similarly styled pseudonym). The title translates literally to “The Book of Being Attacked While Asleep by an Elf.” The phrasing “neikomi o osoreru” implies a sudden, intimate, and non‑consensual (in a fictional fantasy context) nighttime encounter where the sleeping protagonist is approached by an elven character.