Without more information, it's hard to define exactly who Charlene le Mer is. She might be the protagonist of the story, someone with a complex personality. She could be a brave person if the story involves adventures, or a very private person if it's about personal secrets. For all we know, she could be a character from a particular cultural or regional setting in the story.
It could be about various horror elements specific to the noir genre. Maybe it involves dark, mysterious settings, complex characters with hidden motives, and a sense of impending doom.
To write pourquoi stories well, start with a clear question or mystery. Build tension and curiosity as you explore possible answers. Use vivid descriptions and relatable characters.
A great 4th grade pourquoi story might be about why the moon has phases. The moon has phases because of its position relative to the Earth and the Sun. As the moon orbits the Earth, different amounts of the sunlit side of the moon are visible from our perspective on Earth. At new moon, the side of the moon facing us is not lit up by the Sun. As it moves in its orbit, we start to see more and more of the lit side until we get to full moon when we can see the entire sunlit side. This cycle repeats every month or so.
I'm sorry, but I don't actually know the specific 'Mer Mutts' real story without more context. It could be about a particular group of dogs, or perhaps a local legend or event related to some dogs named Mer Mutts.
One idea could be a crossover where Naruto is transported to Noire's world. He could use his ninja skills to help Noire in her battles against the various threats in her realm. For example, Naruto's shadow clone jutsu could be used to confuse the enemies while Noire attacks from a different angle.
Famous noire novels often have a cynical and world - weary protagonist. For example, in 'The Maltese Falcon' by Dashiell Hammett, Sam Spade is a tough detective who has seen it all and trusts no one easily.