Tokue Kubodera

Ms. Kubodera was Mr. Kubodera 's-sensei ilness mother.

Appearance
She was an old person who was living with her son. Ms. Kubodera was a skinny person with white hair and black eyes.

Background
Due to a cerebral infraction, she had been in coma. Mr. Kubodera was killed by her son. The approximate time of death was between midnight and dawn of the next day. This information is never revealed in the anime.

Plot
She made her debut in episode 8 when she was already dead. Some say that Mr. Kubodera was been mentally tired of taking care of her.

Trivia

 * In the manga, the police found her with a pillow over her head. She died smothered. In the anime, it is unknown how she died, but definitely not smothered.