新婚だけど片想い (Series) favorite_border

Volume 1: I'm going to win your heart — no matter what! Satsuki is an accomplished, beautiful high school girl who is arranged to be engaged to someone at her parents' behest. Her fiancé: Kuon, a high school Go player. Handsome and talented, Kuon seems like the perfect match for a smooth-sailing life… until it turns out he's ice-cold and utterly indifferent! Her room is off-limits — marked with a red warning sign — and none of Satsuki's tried-and-true flirting techniques make the slightest dent....