What Wu Yixing refined was an Eighth Grade Demon Spirit, the Night Ghost.
The Night Ghost belongs to the Undead Class, Nether Race, Spirit Series Demon Beast, a type of Demon Beast extremely rare, normal people have never even heard of it, let alone seen it.
This is a Demon Spirit passed down through the Wu Family, its innate ability lies mainly in those completely black eyes.
Because of its eerie and terrifying nature, along with its special abilities, these eyes are also called Ghost Eyes.
Ghost Eyes not only possess a Spiritual Attack but also have a special ability; they can see some supernatural phenomena that normal people cannot see.
For example, a person's talents, future fate, the auspiciousness or ominousness of a journey, etc.
Moreover, as the Demon Spirit's strength increases, what it can see also varies, and legendary evolutions of the Night Ghost allow those Ghost Eyes to glimpse the rules and mysteries of the world.
