A Sister's All You Need: The Complete Series

Itsuki Hashima is kind of a disaster. Between struggling to meet deadlines for his novels and being constantly bothered by his friends, he has one oddity that makes life even more difficult—he's obsessed with little sisters! Luckily, he has his younger stepbrother, Chihiro, to look out for him and keep him sane. And, while he may complain about them, Itsuki can't deny that he enjoys the company of his colorful group of friends when they come over for beer, games, and of course, ranting about the struggles of their work. Even if it does mean enduring the abrasive advances of fellow perverted author, Nayuta—who, despite her best efforts, will never win his heart since she isn't a little sister! But nothing can prepare Itsuki for the secret Chihiro has been hiding—will it completely change their relationship?