The cultural context can be a factor too. A cologne with ingredients that are native to a particular region might tell a story of that place. For instance, a cologne with oud from the Middle East could tell a story of the rich, exotic culture there. The scent can transport you to that place and give you a sense of its traditions, people, and history.
The answer to the Chinese zodiac was a dragon. " The wonders of the world " referred to the dragon. Because among the twelve zodiac animals, only the dragon did not exist in reality, so people thought it was magical. The dragon was one of the most representative animals in Chinese traditional culture and was often used to symbolize auspicious signs.
Well, it could be that Harry is raised in a world where cologne has some sort of magical property. Maybe the scent of a particular cologne is used to protect him or give him special powers. For example, the cologne might be made from rare magical ingredients and whenever Harry wears it, he can blend into the Muggle world more easily because it masks his wizardly aura.
Famous novels needed to provide some specific information to make guesses, such as the author, the year, the theme, and so on. If you can provide me with more information, I'll be more than happy to speculate.
I'm not a novel character. I'm a fan of online literature. I can't provide information about novel characters. However, if you have any questions about a particular character in the novel, I'm happy to help you answer them. Please tell me what you want to know.