I've Become a Genius Actor - Chapter 44:

A nordic romance that burns up coldly!

In her seven years of marriage, she and her husband click perfectly well, sharing a loving and sweet relationship.

When the Unity Trials first began and Neve was granted a system along with the rest of humanity, she sincerely hoped she would be among the first to die.Death eluded her, though, so, until her time came, she reluctantly settled into the role of a healer. One day, she and a group of players ventured into the realm of the Final Challenge, a strange, otherworldly dungeon that would give humanity a ten-year resting period if they completed it. But, although death eluded her, it found all of her allies.Now, with no one to rely on and a burning desire for revenge, Neve must become stronger if she hopes to avenge them.How exactly can she do so, however, when she is only a healer?A survival GL adventure story!

A lifetime ago, Chu Xun was shackled and thrown in jail on false charges. For three whole years, he suffered extraodinary torment from his cellmates every day. Even though he had escaped death many times, he still died from his cellmates’ fists the day before he was to be released.

After death, Chu Xun transmigrated to a different world of cultivation, where cultivation was the one true path. Carrying the weight of his hatred, Chu Xun began to cultivate in hopes of becoming an Immortal Emperor, who could manipulate heaven and earth and travel through time. After painstaking cultivation of three thousand years, he succeeded. Then he sacrificed all his cultivation without hesitation and returned to the day before he was to be released.

This life, he wanted to find out the truth and the one behind his murder in last life. He would continue to cultivate and strengthen himself so that the tragedy would not repeat itself. He wanted to master his own destiny.

In this life, what people would Chu Xun encounter and what experience of love and hate would he have with them? What difficulties would he encounter and how would he overcome? The answer is the book.

- Description from Novelupdates