According to Chu Hong's explanation, Gu Master inheritances were divided into four levels.
The first level was the One-Insect Gu Master.
Gu Masters at this realm possessed one mature Lifebound Gu Worm. They could borrow the Gu worm's power and wield strength far beyond that of mortals. It was the most important threshold separating immortals from mortals.
The second realm was the Two-Insect Gu Master.
Besides their Lifebound Gu Worm, Gu Masters at this realm raised a second mature Gu worm. The power of the two Gu worms would nourish their bodies in return, greatly enhancing both flesh and soul. An ordinary One-Insect Gu Master would not even have the strength to fight back before a Two-Insect Gu Master.
The third realm was the Three-Insect Gu Master.
Gu Masters at this realm had already stepped beyond the ordinary. They were capable of establishing a sect and safeguarding the peace of an entire region. Moreover, Three-Insect Gu Masters developed in an exceptionally balanced manner, making it almost impossible to find any weakness in them.
Chu Hong called the fourth realm the Gu King.
Gu Masters of the Gu King Realm possessed no fewer than four Gu worms. The powers of all sorts of Gu worms left Gu Kings with virtually no weaknesses. To deal with an expert of this level, only Realm Suppression would work. Ordinary schemes were almost completely useless against them.
Chen Luo learned quickly. Mere moments after Chu Hong finished explaining, he had completed the hatching of his Gu worm. He chose the Corpse Controlling Gu, while Little Junior Sister Apprentice Qi Chan chose the Desire Gu. According to Chu Hong, the Desire Gu was one level higher than the Corpse Controlling Gu, and would be somewhat stronger once fully cultivated.
This slight difference was useless to Chen