Ashita Seiryaku Kekkon Suru Reijou ga Osananajimi to Sugosu Saigo no Ichiya Anthology
明日政略結婚する令嬢が幼なじみと過ごす最後の一夜アンソロジー
Just for tonight, I want to be held in your arms, my beloved—the first and last night of mistakes on the eve of marriage. A superb anthology filled with heartbreakingly bittersweet first love encounters. (Source: Ichijinsha, translated)
Translation in progress — original English text.