Mashiro first meets Mai Tokiha when Mai is trying to find Mikoto Minagi, and Mashiro is seen in a rose garden with a maid. When she later meets Mai, Mai finds out that Mashiro is the chairwoman of the Fuuka Academy. She is calm and seems to know more than the people of her age, even though she is just 14. She knows about the Himes, feeling sorry for them as if it was her own fault that the Himes were created.