บท 374: Chapter 195: True Dragon, Foundation, Combat Ability Increase, Repairing the Life-Prolonging Furnace_1

"With this Emperor Level Lower Grade Dragon Vein, the development speed of Han Mansion will once again leap forward by a large margin."

Han Li worked hard, constantly switching his targets, yet his mind was occupied with silent contemplation.

According to the classification in the Cultivation Realm, Spirit Veins are divided from Twelfth Grade to First Grade, with every three grades forming a level, the higher the grade, the rarer they are.

For example, from Third Grade to First Grade are all Top-grade Spirit Veins, containing a large amount of top-grade Spirit Stones; due to different grades, the quantity of stored top-grade Spirit Stones also varies, and at the core of a First Grade Spirit Vein, a Spirit Crystal will be nurtured.