Fics like A Glass Kingdom

On his twenty-fourth birthday, Prince Sakusa Kiyoomi of Itachiyama finds himself engaged to Crown Prince Miya Osamu of Inarizaki. It’s a political arrangement he has mostly resigned himself to undertaking for the good of his kingdom, and it includes staying with his husband-to-be in Inarizaki until Osamu’s twenty-fifth birthday, when Osamu will come of marrying age. All of this would at least be tolerable, if it weren’t for Osamu’s identical twin brother, Atsumu, who may actually be the most annoying person Kiyoomi has ever had the misfortune of meeting.

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