Who is Michael from Project Princess and what is their importance?

Michael is Mia's boyfriend and Lilly's brother. He is a senior, and he seems to have many talents, at least in Mia's eyes. He plays the guitar, he genuinely wants to contribute volunteering, he is strong, and he is kind.

When the other kids move to the back of the bus to escape Boris and the odor of his vomit, Michael sits with him for the rest of the ride. Michael is good-hearted.