The story revolves around secondary school understudy Masamune Izumi who adores composing light books. Having no creative aptitude himself, Masamune dependably gets his books outlined by an unknown accomplice utilizing the nom de plume “Eromanga Sensei”, who is known for drawing tentatively debased pictures in spite of being to a great degree solid.
Notwithstanding adjusting his energy and school, Masamune is likewise stayed with dealing with his lone relative—his more youthful sister Sagiri Izumi. A hikikomori by nature, Sagiri close herself in her space for over a year and continually managers Masamune around in spite of his endeavors to inspire her to abandon her room. Notwithstanding, when Masamune incidentally finds that his mysterious accomplice has been Sagiri up and down, their kin relationship rapidly jumps higher than ever of fervor, particularly when an excellent, female, top of the line shōjo manga creator enters the shred.