In literature, there are some works that might have such imagery. For example, in certain modernist or post - modernist works that play with themes of body, nature, and human experience. However, it's not a very common specific trope with a single well - known 'naked girl in the rain story' across all of literature.
One possible meaning could be vulnerability. Being naked already makes a person physically exposed and defenseless, and in the rain, which can be cold and unforgiving, it multiplies that sense of being at the mercy of the elements. It might represent a situation where someone is facing difficulties or challenges in life without any protection or pretense.
I don't have enough information to say for sure. It could be fiction, or it could have roots in reality that have been adapted or exaggerated for a particular purpose.
The story of Anger Sierra might focus on Sierra's battles with her own anger, how it shapes her personality and the challenges she faces because of it. It could also involve her growth and transformation in dealing with this emotion.
I don't believe it's true. Most of the time, when a story has a name like that, it's made up to capture our interest and take us on a fictional journey rather than being rooted in reality.