Wasn’t the Male Lead a Female?

Wasn’t the Male Lead a Female? is a Manga/Manhwa/Manhua in (English/Raw) language, Drama series, english chapters have been translated and you can read them here. You are reading chapters on ManhwaZ fastest updating comic site. The Summary is

Ainne lived for eight years without even knowing which novel she was trapped in. Then one day, a knight came looking for me and she realised which novel she was in. Actually, this guy is a woman?! The heroine who’s dressing up as a man, taking the place of her brother?! If that’s the case, she’ll become friends with the heroine and live a comfortable life! But she felt that the heroine was acting a little strangely… She didn’t know that the heroine was actually truly a man! She’s already too deep into the friendship, what should she do now? “Do I really look like a woman?”