A high school student who makes a living with a light novel writer · Masamune Izumi lived alone with her in-law sister, Saigo who was withdrawing in the room for one year. One day, Takasago Tomoe of the same class, I am told that the unidentified illustrator “Mr. eromanga teacher” who is also responsible for drawing novels of herself was mocking Masamune on the net. Masamune, who decided to watch the live broadcast of “Erotic manga teacher”, was to know the identity of “Eromanga teacher” there! Is it?