If I Don't Die, I'll Truly Be Invincible - Chapter 37

Liam feels increasingly suffocated by debt, paralyzing shyness, and the monotony of everyday life. However, everything falls apart when he is falsely accused of a crime and is on the verge of being expelled from university. But as he's wandering hopelessly back home, a strange voice echoes in his head, informing him that he has received the “Harem App.”Suddenly, his life is turned upside down, and he now has supernatural powers to win over beautiful women. At the same time, he finds himself entangled in conflicts far beyond those of a mere human.

The prosperity is about to come to an end, and the poor boy quietly rises.

Traveling across time and space, seek the leader of the world.

- Description from novelbuddy

Synopsis below:How did the Avatar universe change when a transmigrant appeared in an unknown village, long before the canonical events? And how are the two islands Kyoshi Island and Uzushiogakure no Sato (A village hidden in the maelstrom)?---Tags: AU, Before-canon, Post-canon, Violence, Death of major characters, Transmigration, Harem, Children, Incest, Romantic. Foul language.

When he did not know her true identity, he treated her very badly, he disliked her too much, she was not elegant enough, she was in the way...Only later did he realize that the woman was his legal wife! He repented, tried to recover her feelings, but she was determined to divorce him.