Gekkan Shoujo Nozaki-san is a Manga/Manhwa/Manhua in (English/Raw) language, ROMANCE series, english chapters have been translated and you can read them here. You are reading Gekkan Shoujo Nozaki-san chapters on viptoon.net, fastest updating comic site. The Summary is
Nozaki Yumeko is a maiden in high school. She's greeted by the transfer student Miyoshi Ritsuo and drags him into her shoujo manga-style hijinks, much to his annoyance... Welcome to the life of Nozaki-san -- who adores the world of shoujo manga and yet is completely oblivious that her own brother is a renowned shoujo mangaka -- in this comedy about a girl who's all about all things shoujo manga!! Note: Based on the original concept of Gekkan Shoujo Nozaki-kun where Nozaki's sister was planned to be the protagonist. Released as part of the special edition of Gekkan Shoujo Nozaki-kun Volume 13 and takes place three years after the original series.