Alya is Marinette's best friend, and for good reason. She's warm, supportive, and always knows how to cheer Marinette up, and her feisty personality is a nice contrast to Marinette's shyness. However, Alya can grow incensed when others are getting away with wrongdoing, breaking the rules, or hiding the truth, and when she was transformed into a supervillain, she set out to right those kinds of wrongs. She also runs a blog documenting Ladybug's adventures, though she doesn't know her BFF is actually Ladybug.