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Satsuki Shirai, a confident and accomplished high school girl, enters an arranged engagement with Kuon Arisugawa, a talented high school Go player. Expecting a perfect life together, Satsuki is taken aback by Kuon’s cold and distant demeanor, including a strict rule against entering his room. Determined to win his affection, she employs her charm and skills, but her efforts initially fall flat against his aloofness. Their daily interactions spark a mix of frustration and subtle romantic tension as Satsuki persists in breaking through Kuon’s emotional walls. The couple’s early married life becomes a battle of wits and hearts, centered on Satsuki’s quest to make Kuon smile at her the way he did during their first meeting.