Running around with the appearance of a boy, the lively commoner girl Tiese, had a beautiful and perfect childhood friend. He, since childhood, didn’t realize that Tiese was a girl, yet was so kind that he felt moral responsibility every time she ended up getting hurt. The childhood friend defeated the half-demon king, and returned as a Hero. While not knowing the reason he went and returned from the journey, Tiese was thinking of parting from her anxious childhood friend, but… Before the job she was about to take just next, she, got involved with a kind Demon King with love troubles, and his not so kind Prime Minister.
https://www.cmoa.jp/title/299982/ Milia, a maid devoted to her beloved princess, would do anything to protect her. When the princess is suddenly demanded in a political marriage by the neighboring beast-man kingdom, Milia is horrified—the groom is rumored to be none other than the infamous “womanizing prince,” known as the worst of the worst. Determined to shield her lady, Milia resolves to become the substitute bride herself. Fortunately, the prince seems to have no interest in his bride at all! Her plan is simple: quietly endure six months of marriage, then arrange a clean divorce. But things don’t go as expected… The supposedly cold prince begins to pursue her sweetly and insistently. Could it be that the cruel prince’s overwhelming affection is far too much for a mere stand-in bride to handle…!?
*"From now on, you are my temporary fiancée."* Emilia, the daughter of a poor viscount's family, is shy when it comes to romance and works hard at her side job of embroidery. Suddenly, a blind date comes her way. Her prospective groom is a beastman nobleman, a count. And a black rabbit at that?! She thought he'd be the cute type from the sound of it, but it turns out he's actually a beastman gentleman who's a top-class martial artist and herbivorous animal... Overwhelmed by his momentum, Emilia is marked with a "marriage proposal mark" and becomes his temporary fiancée...?! (Source: Ichijinsha, translated)
A member of the beastkin nobility and the heir to the Bearwolf Marquis, Leold, suddenly bites Katie on the shoulder, branding her with a "Mark of Proposal". Katie, who was crossdressed at the time, is mistaken as a male and dragged into being his fiancée for a few years until the mark disappears... But the two have the worst relationship...! What is this? A form of courtship?! Source: MU