Tamae Kudou

Tamae is the chair of Kaito's school's parents' committee, of which Sayo is also a member. However, the latter is often exploited by Tamae for all sorts of time-consuming preparations, which she is happy to pass on to her without receiving a word of thanks. She is generally a strict, bossy person who is used to getting her way. However, she's hiding a dirty secret, which is that she's having a sexual relationship with her own son, Takumi (against his will, mind you). Kaito finds out about this in a fairly direct way, because she mistakes him for Takumi when he has to go see her to deliver a message on his mother's behalf. Tamae was intensely self-absorbed, and since she's blind as a mole without her glasses, she mistakes the silhouette in school uniform that appears at the bedroom door for her son.