Chapter 501: A Promise Through Past and Present Lives

As a Formation passed down by the Immortals, the Mystic Sky Yin-Yang Furnace also possesses other marvelous uses.

The eyes of the Yin Yang Fish are actually Artifact Refining Furnaces, one for Yin Refining and the other for Yang Refining, but since there is no corresponding Spiritual Objects to suppress them, it can only activate the low-tiered Water Refining and Fire Refining.

The Female Yin Yang summoned Wei Yuan to the eyes of the fish, where he saw a Butterfly Short Blade placed in each eye. These two blades inherently possess Spiritual traits, enabling them to Travel the Void, truly making them hard-to-come-by Spiritual Treasures. Back then, Wei Yuan, with limited knowledge, thought they were Magic Treasures for the use of Dharma Image Level, only to later realize that they were actually Spiritual Treasures, belonging to the Imperial possessions.

Initially, they should have belonged to the Ghost Witch, but somehow they ended up in Hui Xin's hands.