I like my sister but not my sister (Volume 1-4 is the latest issue)

Publisher: KADOKAWA/Fujimi Shobo
Author: Narita Kou
Size: 128mm x 182mm
Number of books: 4
Language: Japanese
Category: Youth manga, manga
Latest release date: 2019-12-20

Synopsis:
I debut Ranobe writer instead of my sister!? Brother and sister romantic comedy connected by Ranobe !!
One day, Yu Nagami, a high school student who aims to be Ranobe writer, will make a debut as a writer instead of Ryohana, a sister who won the Ranobe Grand Prize one day! The girls are gathering ...!?