The Unspeakable Sadab

The Gong clan is the descendant of the demon nobles. They have lived in peace with humans for hundreds of years, and they have a huge Gong clan group! The demons and humans have been living together for a long time, and most of the people have lost their magic power, except for some of the nobles of the palace clan. But I don't know when, another branch of the demon clan, the evil clan, began to threaten human society, so the descendants of the palace clan fought for justice. The current patriarch of the Gong clan, who is also the chairman of the board of directors of the Gong clan, and the vice chairman Queen, place their hopes on the generation of the thirteen young devils of the Gong clan. Thirteen boys and girls with completely different personalities, mysterious past events, and confusing encounters. Is it a coincidence? Is it trapped? A story of justice and evil, romance and poignancy, angels and devils begins...