Tsukamoto Atsushi

Akari's sarcastic husband. He is a company employee. He is an intellectual and a bit nervous.
He and his wife have known each other since childhood.
They were close when they were newlyweds, but he gradually came to see his older wife as a nagging mother, furthermore, he has started to develop feelings for a younger girl, a junior colleague, and is now not so friendly with Akari.

He is somewhat condescending to the protagonist, who works part-time, and does not try to hide his contempt in his gaze.
He is a typical jerk.