|Rōmaji||Mai no haha|
|Japanese Seiyuu||Airi Ootsu|
Mai's mother is a beautiful woman with long dark gray hair and blue eyes. She usually wears a business suit, with earrings and necklace.
Although she helped manage her daughter's rise to fame, her desire to make money made her neglect Mai's own needs and desires. After forcing her to wear a swimsuit for her photo-shoot, her daughter went on hiatus as a way to get back at her.
Mai had emailed her mother to meet her on the beach. As Mai's mother came, she couldn't see the invisible Mai and went to Sakuta Azusagawa asking him if he was the one that called her there. Sakuta told her he was from the same school as Mai, but Mai's mother didn't remember having a daughter and denied it. He kept pressuring her on how could she forget, but in the end Mai's mother left, feeling it was a prank and not wanting to keep getting involved with it.
On December 24th, Mai's mother shows up at the hospital after learning her daughter was involved in a traffic accident. She becomes distraught after learning Mai had died, and cries out for Mai to be given back. This event, along with Mai's death, does not occur after Sakuta saves himself in the past.