[Original Webtoon](https://ebookjapan.yahoo.co.jp/books/871484) The noble lady Orthria was informed of her engagement's cancellation by her fiancé. Furthermore, she was betrayed by her younger sister and disowned by her family. Despite this dire situation, she did not lament. She had anticipated this outcome and prepared to live on her own. The place she approached for a livelihood was the Magic Research Institute. There, she met Fren, the kingdom's strongest hero knight. "Orthria, would you come under my command?" Fren approached her kindly. However, there was a reason why he came close to Orthria, as this encounter was orchestrated. Their fates, belonging to two different worlds, are now intersect in this romantic fantasy.

[title](https://ebookjapan.yahoo.co.jp/books/903263/) Queen Seirena of the Alcantia Kingdom had dedicated herself to her country, supported by the words of her parents who died young. However, one day, everything was suddenly taken from her by an imposter identical to herself. Betrayed by her fiancé and abandoned in a prison cell where no one came to help, Seirena resigned herself to death. However, the one who appeared before her was King Plum of the neighboring kingdom. He revealed his true identity as a vampire who had lived for many years and posed a question to Seirena: 『Will you become a vampire and come with me, or will you wait for death?』 In order to reclaim everything, Seirena enters into a blood contract with him.

Amelia is the youngest person ever to be appointed the court alchemist. However, she is forced to carry an impossible workload, bullied by people jealous of her unparalleled talent. In addition, her sister steals away Amelia's fiancé, who banishes her from the royal capital! But Amelia is overjoyed to be finally free to live her life as she pleases. She travels to the frontier territory governed by her childhood friend Thomas. Surrounded by kind people, she begins a relaxed frontier life, totally different from the toxic environment of the capital! (Source: Over-Lap, translated)

Lumina, the younger sister, has been working diligently as an alchemist at the royal court in place of her older sister, who spends all her time playing around. She can't rely on her older sister, parents, or even her fiancé. As she endures her loneliness, her older sister and fiancé suddenly break off their engagement and inform her that she will be transferred to the frontier. Expecting to see them grieving over the loss of their position and fiancé, Lumina heads to the frontier, only to find that his majesty, Prince Elms of the Ratman Kingdom, is waiting for her! (Source: Kadokawa, translated)

https://www.cmoa.jp/title/323103/

There is only one saint in a generation. The twins Hestia and Astrea overturned this rule. However, the only one who can make miracles is Hestia, the older sister. Astrea is looked down upon as incompetent, and is forced to take part in marriage instead of her arrogant sibling; but by chance she meets Silvert, the second prince of the neighboring country, and she ends up getting engaged!? A Cinderella love story between an incompetent saint who dreams of average happiness and a prince who sees through to the truth! (Source: M Novels f, translated)

Mayanna, the daughter of a marquis, comes from a family renowned for magic, but is a failure who can only use outdated rune magic. What's more, she is overworked by her older sister, a talented magician, and even has her fiance taken away from her, making her a pitiful victim. Then, one day, Prince Alectos, a great genius in magic, comes to visit Mayanna... "Mayanna Pheles... I've come to scout you." Will outdated rune magic save the country?! The reversal of Mayanna's life, once scorned as her older sister's waste, begins now! (Source: Futabasha, translated)