The 'Am I A Daughter' manhwa might be a story about a character's self-discovery and exploration of her identity. But it could vary depending on the specific plot and themes.
In general, there aren't major differences. The adaptations tend to maintain the core story and character traits of the 'Am I Your Daughter' manhwa. Maybe some minor details or artistic styles could vary, but it doesn't change the essence.
To know if you're a daughter in the manga, we'd need to look at how the author has developed the characters and the storylines. Maybe there are certain clues or indications that could tell us. But as it stands now, it's impossible to say for sure without more information.