The caricatura of Remi's song might focus on highlighting certain unique or prominent features of the music, perhaps through exaggerated visuals or symbolic depictions. It could aim to create a visually striking and memorable interpretation of the song's essence.
Another possibility is that Remi's Secret Story has to do with a secret identity. Maybe Remi has a double life, and she is involved in some kind of activity that she doesn't want others to know about. For instance, she could be a volunteer for a secret organization that helps people in need, and she has to keep her involvement a secret for safety reasons.
One common theme is the struggle against dark forces. Remi, being a Dark Hunter, often has to face powerful and malevolent entities. Another theme is self - discovery. Fanfictions like to explore how Remi grows and changes as he faces different challenges.
I'm not sure specifically which 'Remi' and 'Secret Story' you are referring to. There could be many Remis with their own stories. It could be a personal story about a person named Remi, or it might be related to a fictional character in a book, movie or game.
A lesser - known but very good 'Dark Hunter Remi' fanfiction is 'Remi and the Lost Souls'. It's a more introspective piece that shows Remi's journey in helping a group of lost souls. The writing style is quite engaging and the story is full of heart.
In fan fiction, 'SK' might stand for a special power or ability that the author has created. Or it could be short for a secret organization or group within the story's world. Without more context from the specific fan fiction, it's hard to say for sure.