Born and raised in Scotland, Marcheline, or Mai as she is commonly known, is closely attached to her country despite not having stayed there for quite some time. At the age of thirteen, she was sent to New York to study and had since stayed there until she graduated high school. Having been born in a family who had archaic views in lifestyle and values, she had been arranged to be married to someone the day she was born - a tradition her family's been practicing for over a hundred years now. Her childhood is filled with memories of a princess-like life. Being the only daughter to her extremely busy and somewhat negligent parents, she was showered with gifts and everything their money could possibly afford to buy for her, often it being a cover-up for all the times her parents didn't get a chance to spend time with her. As expected, she grew up like a spoiled brat, and even at the age of nineteen, she shows such child-like characteristics that one would simply wonder if she really is a lady.

Fairy tales were her favorites, drawing from them the life she wanted to have wherein a prince would someday come to sweep her off her feet and they would have a happy life together. Unfortunately, she could not even hope to believe that her future husband was that man. This, however, does not bother her as much as she would want it to. Her possessiveness and selfishness makes up her relationship with Scott Reid, her would-have-been husband, wherein he sees him like an object that only belongs to her. So no fear has ever crossed her mind that someone would take him away. Even if she knows that his feelings are projected to someone else, Mai stands firm in her belief that what's hers is only hers and someday soon, Scott will realize that, too. In a night of misery, however, she ends up sleeping with his best friend, ultimately leading to an unexpected pregnancy.

Mai has never really been a people person. It's difficult for her to get along with people and she never really makes any effort to remedy that. She can be too much to handle, and it is believed that Scott is the only person who actually tolerates her without any resentment hidden beneath his kindness.Friends never meant that much to Mai and still doesn't. She has a belief that if you can buy anything, so-called friends will just come to you any day. Her relationship life has never been stable. Rarely does she get a chance to see or even speak with her parents, which she had already been used to, and the closest thing to a real relationship she has is being with Scott, which shouldn't even be called as such. Despite her initial nonchalance towards him, she's grown quite fond of him, having noticed his genuine kindness and care for her even though they barely knew each other and had not spent long enough times together. This mainly solidifies her desire to keep him for herself. She has a strange relationship with Wyatt Frachiseur, Scott's best friend and the father of the child she's carrying. Their personalities seem to be in equal leveling which brings about the idea that they could be perfect together, but both have strong negative feelings for each other despite that, though an attraction seems to be present as well. Mai is known to be overwhelming to take, and her lack of friends rivals that of the number of enemies she actually has. Not real enemies, though, as she considers no one a competition or worthy enough of her anger. People just naturally come to dislike her for her personality, which no one is really surprised. She's judgmental and can not be satisfied so simply, often voicing out her dislike for anything and almost everything. A hateful feeling has brewed inside of her that she directs towards the girl Scott has strong feelings for, which is all new to her. This resentment is what defines her actions as of late.