This is really not mechanical ascension - Chapter 224 - 127: Exploring the Underground Laboratory - So Many Treasures, It’s Dazzling

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.

A phrase about his merits startling the Emperor, it led the Invincible God General to become a prisoner at the feet of others.A phrase about his origins as a commoner turned a vow as steady as mountains and as deep as seas into something less than a beast.He was once the greatest general of all time in the Great Shang Dynasty, celebrated for quelling the disturbances of the Seven Countries. Yet, during the victory banquet, he was framed by the Emperor of Great Shang and his beloved Ninth Princess. They destroyed his Dantian, crippled his meridians, and exiled him to the frontiers.In his icy and hopeless heart, he received meticulous care from his newlywed wife and unexpectedly unlocked the Ten Thousand Beasts Sky Prison, becoming the Master of Ten Thousand Beasts.He resumed his training in Martial Arts, and the wild beasts were unleashed!

Two women visits Dong Fang Ao’s home. Both women claim to be his betrothed. The first woman wants to break off their betrothal but she lost the betrothal gift. The second woman is holding the betrothal gift and demands Dong Fang Ao to marry her.

Dong Fang Ao keeps both women as guests in his home to find out who is his real betrothed. He is curious about the secretive Cao Zi Yun. If she is his real betrothed then he wants to keep her by his side forever. But her secret is capable of separating them forever.