Fans of the series and lifestyle coaches who analyzed the show distilled a verified communication rule from the Toda family's therapy sessions: For every 5 minutes of complaint or logistics (bills, chores), there must be 3 minutes of neutral observation (news, weather) and 2 minutes of unprovoked affection (a touch, a compliment).

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The series is known for its dark, dramatic, and controversial themes, primarily focusing on , a genre where a protagonist's loved one is seduced or coerced away from them. It originated as a visual novel by the developer Lune Team Bitters and was later adapted into OVA (Original Video Animation) series. The franchise includes a main series and a sequel with a different storyline.

The protagonist; an ordinary businessman who loves his wife but is plagued by the fear that he isn't "enough" for her.