One Piece – Thundergod Marine - Chapter 83 Invincible Part 1

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

The world calls for heroes, and in dire situations, they tend to rely on anything just to escape death and live.The story begins when a man from another world becomes one of the three heroes of fate. His strength prospers among the other two, fate favors him, but the people do not.After saving the entire continent from the Demon God, they feared his strength and banished him from any human land with no where to go he thought of nothing but to suffer.But there are still beings who cared enough to give his life a new light.[ You are never Forgotten ]

Lin Xinyan was set up a one-night stand trade with a stranger man to get the medical treatment fee to save her mother. That night took her virginity and got her pregnant. Lin Xinyan never touched her husband-Zong Jinhao, until one day she found out her crippled husband was involved with another woman. The woman met her and recognized that Lin Xinyan was the one that she set up for that one-night stand. When she knew Lin Xinyan was pregnant with Zong Jinhao's child, she tried to kill her and her baby with every means she could. But Lin Xinyan didn't know that the man who slept with her that night was her husband, nor did Zong Jinhao know the baby was his, until one day...

Before meeting Shen Xu, all Zhen Yuan wanted was to seek the dao and cultivate to the peak. After meeting Shen Xu, he thought the dao was important, but his wife was the most important.When Shen Xu transmigrated into a book, he mistakenly believed that Zhen Yuan was not a character in the original story. What he didn't expect was that his husband was the most mysterious and powerful unnamed character in the original novel.