The main difference is the inclusion of 'lemon' elements. Regular OHSHC fanfic may focus more on the general relationships, school life, and comedic aspects of the Ouran High School Host Club. But 'ohshc lemon fanfic' often contains more romantic or even slightly more adult - themed content, like more intense emotional and physical relationships between the characters.
There's a lesser - known fanfic 'Unseen Identity'. The male OC's appearance as a girl - like figure is central to the plot. He uses it to his advantage in some situations, like fooling the school's bullies. But as the story progresses, he also learns to embrace his true self and not rely on the false identity his looks give him. It's a really engaging read.
One common theme is identity confusion. The boy who looks like a girl often struggles with how others perceive him and how that impacts his own sense of self. Another theme is the exploration of relationships. Since his appearance can be deceiving, it leads to different types of relationships forming, some based on the initial misperception.
One common trope is the 'identity confusion' trope. Since the male OC looks like a girl, other characters often mistake his gender, leading to comical or awkward situations. For example, in many fanfictions, the male OC might accidentally end up in the girls' changing room, causing chaos.
There's a fanfiction I heard about where the new transfer student in OHSHC is a boy with long hair and delicate features. In this fanfiction, the other members of the host club initially think he's a girl. It focuses on how his appearance affects his interactions and his journey to fit into the club while also being true to himself. However, I can't recall the exact title. You could try asking in OHSHC fan groups on social media for more leads.
One great fanfiction could be 'The Scholarly Ohshc OC'. In this story, the original character is really into ancient books and is constantly studying them in the Ouran High School library. It has interesting interactions with the main Ohshc characters while on this book - studying journey.
Another possibility is that the Avengers end up in the OHSHC world. The Avengers would be really out of place in that high - school - like setting. Thor might be really confused by all the tea parties and formalities, while Iron Man would probably try to find a way to use the technology there, which is much less advanced than his own. Black Widow could blend in a bit better, using her espionage skills to navigate the social hierarchies of the OHSHC club.
In the end of the OHSHC manga, the characters reach significant milestones in their personal growth and the story wraps up with a mix of heartwarming and bittersweet moments. It leaves readers with a satisfying conclusion while still leaving some room for imagination.
Maybe the OC is a foreign exchange student who is lost on her first day at OHSHC. Mori comes across her and decides to help. He shows her around the school, and the OC is fascinated by Mori's calm and stoic nature. She starts to draw him in her sketchbook secretly, and when Mori finds out, he's flattered. This leads to a series of interactions where they get to know each other better and eventually fall in love.