The Promise Isn't Mine Manga

Summary:

When her twin sister Leyla, the Holy Maiden, suddenly disappears one day, the ordinary Elena finds herself having to marry Crown Prince Kyle, a man infamous for his ruthlessness, in her stead. After a dreadful marriage ceremony, Kyle demands that a certain promise be fulfilled, to Elena's confusion.

When her twin sister Leyla, the Holy Maiden, suddenly disappears one day, the ordinary Elena finds herself having to marry Crown Prince Kyle, a man infamous for his ruthlessness, in her stead. After a dreadful marriage ceremony, Kyle demands that a certain promise be fulfilled, to Elena's confusion.

When her twin sister Leyla, the Holy Maiden, suddenly disappears one day, the ordinary Elena finds herself having to marry Crown Prince Kyle, a man infamous for his ruthlessness, in her stead. After a dreadful marriage ceremony, Kyle demands that a certain promise be fulfilled, to Elena's confusion.