MTL - Reborn: Femme Fatale First Daughter - Chapter 678 Meet each other

Childhood sweethearts.
The most popular person in school is my childhood sweetheart.

- Description from Novelupdates

Crippled by the loneliness of life and now the sudden death of the only person that treated her as a human. With strong feelings, Megumi scorn's life end abruptly as she wished to re-join her friend Eric, in death... Only.... She wakes up in the same room feeling an eerie change to her surroundings.Behind her stands a Reaper! Revealing her death to be true, she now finds herself separated from Eric in the world of Purgatory. A world of death where demons are born, the reapers sow and the sins of man become alive!

A lonely soul, which was placed under the care of the Lord Protector’s Manor, ended up having her lover stolen by the family’s eldest daughter and dying tragically the day before her wedding.

Somehow, she was reborn in the family as their 14-year-old first wife’s daughter, Ning Xueyan, with a startlingly familiar face.

Step by step, she will ruthlessly scheme to seek revenge as well as uncover the mystery of her tragic death.

Her former fiancee, the flirty crown prince and the bloodthirsty prince, will now bear witness to a vengeful Ning Xueyan becoming the peerless lady of her generation…

- Description from Novelupdates

220 years ago, in the legendary Dragon Demon War, Hero Azell ended the war by killing the evil Dragon Demon race’s King Atein. He was able to save the population, but as a consequence, he was cursed. While he was dying, the high magician suggested a gamble that might save his life.