There's also 'Kashimashi: Girl Meets Girl'. Here, the female protagonist turns into a boy after an accident and has to navigate through various situations. It offers a unique take on the theme.
One popular one is 'Hana Kimi'. The girl disguises herself to attend an all-boys school and it's full of fun and drama.
Well, such a manga might explore themes of identity and self-discovery. It could have funny moments when she tries to keep up the act and serious ones when her secret is at risk of being exposed.
One such popular manga is 'Your Name' where the main character experiences a gender transformation. It has gained a lot of fans for its unique plot.
Another well-known series is 'Your Name'. It's not a traditional manga of a boy turning into a girl, but it has elements of body swapping. The story is beautifully crafted and has gained a lot of fans worldwide. Also, 'Kämpfer' is another option where the male protagonist transforms into a female fighter.
You might enjoy 'Hana Kimi'. The story follows a girl who poses as a boy to get close to her idol at an all-boys school. It has great character development and funny moments.
It might be an adventure story. The girl could use her disguise to explore new places or get involved in exciting escapades that she wouldn't have been able to otherwise.
There's also 'Twelfth Night' by William Shakespeare. Viola pretends to be a boy named Cesario to work in a strange place. The plot gets quite interesting with all the complications that arise from her disguise.
The most common theme is identity crisis. As the girl pretends to be a boy, she often questions who she really is. Is she still the same girl inside or is she becoming something else? Another theme is the power of disguise. It shows how a simple change in appearance can lead to different opportunities and experiences. And finally, the theme of equality is there. By being able to function as a boy, it shows that girls can be just as capable, which is an important message in these types of fanfictions.
One reason could be that it plays with the idea of unexpected pairings. People are drawn to seeing how these two very different characters interact and possibly develop a relationship against all odds. Also, it gives a fresh perspective on social hierarchies in a school setting.
One popular 'girl pretends to be a boy' fanfiction is 'The Girl Who Became a Boy for a Day'. In this story, the girl has to pretend to be a boy to enter a male - only competition. It's full of humorous situations as she tries to fit in with the boys, like learning how to walk and talk like them. Another one could be 'Masquerading as a Boy', where the girl disguises herself as a boy to protect her family's honor. The story unfolds with her facing various challenges and making new friends along the way.