That Person. Later on… - Chapter 149

Qin Aofeng, a third-generation descendant of the great and prestigious Qin Family, was just as famous as his genius big brother Aotian, but was famed in Qin City for being the “Good-for-nothing Seventh Young Master.”

The compound is perilous, the clan is full of conflict. Before her rebirth, she dressed as a male, her birth a mystery. Because of her lack of talent, she was thought of as a worthless member of the clan. After her rebirth, she walked onto the path of a strong person, and lived on the continent like a fish in water.

Until one day at the capital city of the empire, the spear of the patriarch pointed to her young uncle that she always treasured, the “young male” that had always been undistinguished stood out, and astounded everyone, becoming a peerless genius. Ever since then, countless males and females became made for … …

The vast ancient forests, the deep bogs shrouded in back mist, the desolate and endless desert, the mountains and plains without any border where the magical beasts moved unhindered, this was a vast magical world.

- Description from Novelupdates

Madeline Celeste d'Aumont is the first daughter of Duke Aumont and Duchess Louise-Marie d'Aumont who has been engaged to the Second Prince of Pays Des Abrutis since she was a child. The Second Prince decided to marry a woman closer to his own age and broke off the engagement to Madeline who was left with a broken heart and a reputation as being an unwanted woman even before she was an adult. The Duke decided to help his daughter regain her confidence and reputation by sending her to the Academy de L'échec.

Ito Aoi was the son of a Kendo master who ran a dojo in downtown Tokyo. One day while crossing the street to get some Yakitori, Aoi was hit by a delivery truck and woke up as the trash first son of Duke Montfort, Guy de Montfort. Duke Montfort also sent his son to Academy de L'échec only Aoi instantly recognized that he was now living in the world of an Otome Game that his sister loved to play and talk about all the time. Aoi recognizes that Madeline is the villain from the game. Aoi also recalled his sister saying that Madeline was terrible in the game, but is she really?

A young man who had longed for stories of good and evil since childhood lost his life in a tragic accident and was reincarnated as a boy named Chrono Mak in another world.

He learned that in this other world, there is magic and witchcraft, and depending on how you train them, you can become as strong as you want to be, so he decided to become the strongest demon king in order to recreate the story of justice and evil he once dreamed of.