Rise of the White Devil - Chapter 51: Shield Academy

In a modern world where cultivators need a place to cultivate or vent their boredom, there are private businesses that set up instance dungeons with the aid of technology and cultivation magic to enable cultivators to train and commoners to experience the life of cultivation. They are called dungeon suppliers.
Xie Jin's one and only dream was to be a dungeon supplier and when his only relative passed away, the relative's inheritance gave him a plot of land and surprisingly, a 'System' Module which the relative had previously used.
With the help of the system, Xie Jin decided to pursue his dream of becoming the number one dungeon supplier.

Song Yang was a Mercenary King in his previous life, killed by a stray bullet. He transmigrated to a world of cultivation, where the ability to control clouds and move mountains is commonplace.In this life, after taking over the body of a prince who had lost everything, he awakened a system that granted him a legion of thousands of cultivators in the Saint Realm from the start, and thus his story began.Creating a Shura Palace that made the whole continent tremble as soon as it heard his name.Be it a Saint from a Holy Land, an Emperor from a Powerful Empire? An ancestor from a powerful family?No matter who it is, as long as they pay the corresponding price, Shura Palace can kill.

After 2000 years has passed, the ruthless demon lord has just been reincarnated! But his aptitude at an academy for nurturing candidates for demon lords is, “Inept”!?

Condition 1: One yellow scarf soldier rune is satisfied

Condition 2: Kill 100 rune monsters independently

Condition 3: 5,000 times of training to kill a pig with a knife is satisfied

Condition 4: 10 Spirit Talisman Pills are satisfied

Rune unlock upgrade.

Your source runes have been promoted from ordinary quality [Yellow Turban Soldiers] to premium quality [Yellow Turban Warriors]!

- Description from novelbuddy