Her name is Maria Mikhailovna Kujou. But she usually using her nickname 'Masha' , she also had a sister name Alisa Mikhailovna Kujou or also known as Arya/Alya. She is an honor student who boasts the highest grades in the school and serves as the treasurer of the student council. She is one of the two most beautiful princesses of the school, and is called the "solitary princess".She always ranks first in class test, is good at sports and has the role of the student council treasurer.