Gekkan Shoujo Nozaki-san is a Manga/Manhwa/Manhua in english language, ROMANCE series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc 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.