Voice Actress: Stephanie Sheh (https://youtu.be/nM_AgqjbY7o?t=6)

Mai is the protagonist of the manga Remix Heart, the manga Variable Heart, two side-stories in Chrono Phantasma Extend and introduced as a playable character in the console version of Central Fiction. She is described as being cheerful and forward-looking, sincerely sympathetic towards others and valuing her friends above all else. Mai was a classmate and friend of Noel Vermillion, Tsubaki Yayoi and Makoto Nanaya, as well as the roommate of Kajun Faycott, during their time at the Military Academy. After leaving the academy, Mai worked for Sector Seven alongside Kajun under Kokonoe. Though she had been missing to her friends for many years, Mai reappears in Central Fiction alongside Kajun to assist her friends in the final battle. At the end of the series, Mai and Kajun help Platinum acclimate to a normal life in Kagutsuchi. Her true name is Mai Hazuki and she is the heir of one of the twelve noble families that govern the world. Mai was originally male but was transformed into a girl when she inadvertently became the vessel of the Nameless Grimoire, as the grimoire changed her form to suit the 'reflection of her heart.' Initially unsure about her new state and wishing to find a way to return to her original form, Mai begins to come to view herself as female and eventually accepts who she is. She obtained a spear during Variable Heart called Gallia Sphyra: Outseal which she has used ever since. It is a Legacy Weapon replica that is as powerful as a Nox Nyctores. Her Drive has the same name as her spear and enables her to throw Outseal at her opponent, which she can change the direction of mid-flight and home into enemies if it initially misses. 

Mai’s Central Fiction profile describes her as being cheerful and positive, sincerely caring towards others, that she values her friends above all else and that she often neglects herself due to the strength of her feelings. Mai displayed her loyalty to her friends by her willingness to face Hazama in order to protect Noel even though he was a Control Organization officer and her actions could thus be seen as treasonous.

At the start of Remix Heart Mai was sheltered, timid and had difficulty interacting with others. This was because her harsh and distant father had taught her to consider everyone a potential enemy, causing her to grow up without friends. In addition, Mai initially had very little self-esteem and a low sense of self-worth due to her father’s desire for a perfect heir which Mai was unable to achieve. Furthermore, her father’s apparent rejection caused Mai to fear that all the other people she met, including her friends, would also eventually reject her just like he did. She also initially felt insecure being surrounded by girls and was embarrassed by seeing them naked. However, she quickly demonstrated that she was a good person, as she agreed to eat Noel’s cooking in order to make her feel better despite the warnings of her friends. Throughout Remix Heart Mai was very kind, polite and did what she could to help her friends due to the fact they were the first people to fully accept her. In addition Mai showed great courage and inner strength as well as a willingness to fight in order to protect those that she cared for. Carl had commented that Mai’s personality is similar to his sister, Ada. When Mai was a man, she used to be more quiet due to the pressure of being the next head of the Twelve Originators family as well as due to her father keeping her isolated. She stated that she had been like a puppet, living an uneventful life with no freedom. Making friends and being freed from her father’s constraints allowed her personality to evolve, and resulted in her overcoming her shyness and becoming more open towards others. In addition, thanks to her friends who accepted her even though she was not perfect, Mai managed to overcome the inferiority complex and trust issues caused by her father and gained both self-confidence and a sense of self-worth. Nonetheless, Mai still greatly respects her father and earnestly wishes to earn his approval.