Tomioka Saori

A celebrity housewife living in the protagonist's neighborhood.

Her husband is a successful businessman who owns several venture companies. She rarely comes home and spends her time doing whatever she likes.
Instead, she never misses out on socializing with her neighbors and has a good reputation around her as a well-mannered wife even though she is a celebrity and a wealthy person.
She and the main character have met many times at the garbage dump and are familiar with each other.
They have become friends enough to make small talk, such as when the protagonist helps her with the garbage.