The Undying Immortal System - Chapter 15: Life 50, Age 16, Martial Disciple Level 1

A poor and bereaved medical student rescued an injured black dog from a busy road, but the black dog bit him and gave him a clinic—the Sky Clinic. If he didn’t pay the rent on time, his life would be cut short.

In order to survive, how would Ning Tao, a new cultivator, earn the good and evil value to offset the rent? What kind of bizarre and inconsistent things that were beyond his imagination would continue to happen to him? As a person between good and evil, he must keep himself balanced. How would he enhance his cultivation in the ordinary yet fantastic urban life?

This was a story of an ordinary young man who cured people while praising virtue and punishing vice.

- Description from Novelupdates

Ajax was an orphan who survives a massacre along with his friends but unfortunately gets separated from them.

Fortunately, after a turn of events, he successfully gains a system which helps him increase his cultivation, but doesn't know what it is called.

But he knows one thing for sure, this system is very powerful and helpful in taking his revenge.

“Whoever you are, I am gonna find you”, Ajax mumbled himself with a disgruntled expression.

In a world where Summoning of an elemental spirit is done through a dream when they are 15 years old, Ajax with the help of a system and his summoned spirits sets out on a journey to seek revenge against the mastermind behind the massacre.

Growing up in poverty, Sunny never expected anything good from life. However, even he did not anticipate being chosen by the Nightmare Spell and becoming one of the Awakened - an elite group of people gifted with supernatural powers. Transported into a ruined magical world, he found himself facing against terrible monsters - and other Awakened - in a deadly battle of survival.
What's worse, the divine power he received happened to possess a small, but potentially fatal side effect...

After retiring from the special forces, Ye Tian is hired by a beautiful boss as her personal bodyguard, leading to a colorful and adventurous life for him...