The ”new sibling roht novel author in high school Masairl who hasn’t left her room for an entire year She even forces her brother toher meals when she stomps the floor Masamune wants his sister to leave her room, because the two of them are each other’s only faa Sensei”, draws extres, and is very reliable Masaured he was just a disgusting, perverted otaku However, the truth is revealed… that his ”Ero Manga Sensei” is his own younger sister! To add to the chaos that erupts between the siblings, a beautiful, fea creator becomes their rival!