It's Actually Not Easy Wanting to be a Supporting Male Lead - Chapter 2.5

A Heavenly God was transmigrated into a different world right after he died. After arriving in that world, he resides in the body of a handsome young man with a mechanical voice inside his head providing him with missions. It also kept on telling him to brew wine every single day.

The World of Ephesus. A vast world plagued by Breaches containing countless Beasts of Corruption. A World on the brink of ruin as the Four Human Lineages defend the last bastions of Humanity! With the power of Gem Masters standing against the Beasts of Corruption, the flames of Humanity seek to burn ever brighter. In such a world, in the Mortal Branch of the Asmodeus Bloodline, Alexander awakens a Gem Socket that others consider defective. A Variant Gem Socket. Looked down upon by those who do not understand it, this supposed defect may just be the solution that the burning embers of humanity were waiting for. Follow Alexander as he entirely warps the perception of what a Gem Master is- as he embarks on a journey to become...The Empyreal Gem Master!

MOUNTAIN SITTING IMMORTAL (MSI)A conduit of the great Dao happened to enter the grotto heaven called Earth. No one had been able to take ownership of this conduit for many years until Marvin came into contact with it. Marvin met the requirement to use the conduit. This allowed him to begin his journey towards immortality. The journey begins from transcending the first mortal coil at Body Forging to transcending the second at Energy Gathering, passing through the subsequent mortal coils, and hopefully to becoming a true immortal with eternal life.But the conduit is far more useful than helping a dying business tycoon gain another lease at life. It is also a conduit of great power. This power and many more will be his as long as he continues to sit on his mountain and grows the mountain into a colossus. The mountain will bring him to greater heights and greater power. This is the story of the Mountain Sitting Immortal.

After being reborn twice, Jiang Chen discovered that the tragic death of the first life was not an accident, but a meticulous design for the sake of never ending troubles.

The protagonist of “Life of Domination” wears the “best choice system”. In the delivery room, the system gives him two choices: “ordinary biological parents” and “rich non-biological parents”.
The protagonist chooses without hesitation.

So , the system took Jiang Chen and the protagonist unknowingly, and the life after that was turned upside down.

The protagonist relying on the system in his hand, went all the way from a scholar to a crocodile, inheriting the family business in expectation, a complete life winner
Jiang Chen, on the other hand, had to give up his original dream and graduate early to earn.

One hundred years after the star calendar, the scientific research boss Jiang Chen woke up and returned to his second year of high school. His father was disabled in a car accident, and his mother carried all the heavy burdens, but did not complain to him at all.

Jiang Chen did not choose to find his biological parents first, but made a breakthrough by himself with the memories of his previous life and the knowledge he had learned in his previous life.

In a word: Professor Jiang, a man who can tear apart the system plug-in with his bare hands.

- Description from Novelupdates