Sister's All You Need., Vol. 1 (light novel)

Itsuki Hashima is anovelist who's hopelessly enamored with the idea of little sisters and isconstantly surrounded by colorful characters. A world class genius and love-guruwho's beauty almost seems a waste on her. A girl who's constantly troubled byher friendships, love interests, and can't even find refuge in her dreams. Aridiculously talented illustrator. Each of them have as many problems andworries as the next and they never have a dull day together as they play games,travel, and work together. From the same author of the famous I Don't HaveMany Friends, Yomi Hirasaka!