So I Am A Demon Descendent! - Chapter 723

She, a genius abandoned by her clan. He, a proud, pampered, two-faced imperial crown prince, a developing supreme ruler of the world. She, tricking him, disguised as a pig to eat a tiger, suppressing him, provoking him. Every time, after playing with him and stirring him up, she’d escape.

No man could put up with this! He could only hunt her, pamper and indulge her, lure her into falling in love with him, who would have thought, the one to first fall in love would turn out to be him———-

A young man who stood above the world, a young lady who dominated the landscape, evenly matched opponents, evenly matched romantic game of chase and tag.

- Description from novelupdates

This is the tale of an earthling, who transmigrated as a dying third-rate god but somehow rose through the ranks, gaining followers and eventually causing the Fourth Great Apocalypse.

Lin Yuan took a ‘Gate to All Realms’ and traveled to the vast universe of the Star Sea.

The most powerful person here can destroy the starry river system with a snap of his finger, and tens of millions of light years are coming in a blink of an eye.

Lin Yuan, who has been reduced to the bottom, can only rely on the ‘Gate of All Realms’ and the bound talent ‘Heaven-defying Comprehension’ to travel through all realms and become stronger silently.

[You have incredible understanding, practice the Yi Jin Jing, and understand the ‘Yi Jin Jing, body exchanging blood and quenching the gods’]

[Your understanding is against the heavens, you understand the thunder in your palm, and understand the ‘Thunder Creation and Development Method’]

[Your understanding is contrary to heaven, watching the birth and death of the world, and realizing the ‘world in the palm of your hand’]

[Your understanding is contrary to the heavens, you have studied the art of incarnation outside the body, and realized the ‘Great Law of Self-Transformation’]

…

As he traveled back and forth again and again, Lin Yuan grew stronger endlessly, until… he was invincible in the world.

- Description from novelbuddy

There was a mysterious old man who approached the failed swordsman with the “100 million years button”. A magic button which can achieve the same effect as training for 100 million years if you push it.

The failed swordsman who pushed the button had his doubts, but immediately felt tremendous power rising in his body. So he pushed the button many times.

However it was a cursed button. The moment it was pushed, he was confined to the 100 million years prison of time. The first 100 years were devoted solely to training. After 1000 years he had forgotten why he swung his sword. He stopped thinking completely after 10,000 years had passed. After 100 million years he became crippled and finally managed to return to the real world. At the same time losing all his memories from the past 100 million years, the only thing that remained were his sword techniques. “I can become stronger just by pressing the button!” or so he thought and pushed the button many times after that. Foolishly trapping himself in that 100 million years of hell each time.

As he continued this loop, he began to think “If I destroy this world, will I get out of here?” A few billion years later, he finally escaped from the loop.

This is the story of a failed swordsman trying to make a name for himself in the world.