Medusa in a Crossover World

A crossover story about Medusa, with a human body and a serpent's tail, growing up, causing trouble, and having trouble caused for her. In the early part of the story, little Medusa is an adorably soft and squishy little dumpling. Later, following her naturally fierce fighting instincts, she becomes a stunning beauty with overwhelming strength and a powerful, dominant personality. The crossover worlds featured so far are The Prince of Tennis, Harry Potter, and Gintama. As for other series, that depends on the author's occasional whims and readers' passionate requests. The author is the kind of person who'll die if they don't write down an idea as soon as it strikes = = Lately, I've been working hard to curb my urge to make snarky comments...