Tae Ohto is Ai Ohto's mother, a divorced single parent raising her daughter alone in apartment 4-303. She transitioned careers after her divorce, leaving her position as editor-in-chief of a fashion magazine for an unspecified job supporting their household.

Slender with pale skin, she keeps her dark blue hair shoulder-length and typically tied in a low ponytail. Her eyes are a consistent yellowish-amber. Her usual attire consists of a white buttoned shirt featuring blue square patterns, beige loose pants, and low-platform white shoes.

Tae possesses a soft-spoken, calm, and polite demeanor, exhibiting kindness and expressing deep concern for her daughter's well-being, particularly Ai's school absenteeism. Ai describes her mother as diligently and perfectly performing both household and professional duties. Tae maintains a consistently supportive and stable presence despite challenges.

Currently, she is in a relationship with Shuichiro Sawaki, who frequently visits their home, a development occurring within the series timeline. Her background includes regular visits to Ai's school to discuss her daughter's situation prior to Ai's withdrawal. Her established role remains navigating co-parenting after divorce and new relationship dynamics, without significant character development depicted beyond this.