Kujibiki Tokushou: Musou Hāremu ken - Chapter 290

Kurogami Ichiro was desperate because he couldn’t achieve what he wanted when he once started his martial arts path at age of 8!

On that day, the fog blocked everything.

On that day, he became the captain of a ghost ship.

On that day, he stepped through the thick fog and confronted a completely subverted and fragmented world—the old order had vanished, strange phenomonoms dominated the endless seas beyond civilized society, and isolated island city-states and fleets of ships challenged the sea that had become the last ember of lights for the civilized world. All of this while the shadows of the old days were still stirring in the deep sea, waiting to to devour this world that was about to die.

But for the new captain of the ghost ship Vanished, there was only one question he had to consider first— Who knows how to drive this ship?!

- Description from Novelupdates

[Dazzling Beauty × Aloof Tycoon] [His Deliberate Plan]That night, abandoned by the man she had loved for ten years, she was deeply saddened and sought solace in alcohol, but accidentally drank the drugged liquor. Then, he appeared. With a lazy posture and a relaxed tone, he asked, “How about being with me?” He was a big shot feared by all and stood atop the pyramid of society. She knew he was a handful, yet she was still somewhat captivated by him. Thus, she agreed, “Fine.”From then on, it became widely known that he had taken a woman under his wing, doting on her excessively and granting her every wish. Some were jealous and said, “How long can he spoil her? They're just acting and will break up soon.” In fact, she thought the same, so she never dared to fall in love and awaited the day when she would be cast aside. Later, when rumors of a new companion in his life reached her ears, she prepared to leave, but he refused, saying, “You are the only one I have loved all along.”Little did she know, he had loved her for ten years...

What was originally an ordinary day, suddenly became a historical turning point. Enormous, mysterious Cubes appeared all over the world without warning and as if Judgement Day’s spears, inserted themselves into the blue planet.

From inside the enormous Cubes, endless streams of monsters gushed out alike raging tides, utterly defeating the unguarded armies of each state in the blink of an eye.

In order for humanity to preserve its final embers, the heads of states issued orders of retreat, to no longer attack the Cubes but rather to cling to remote cities, which they turned into self-sufficient survivor bases and around which they built 100-meter-tall Walls of Life!

Many years later, while bearing the heavy weight of history, the first expeditionary force brought back a world changing piece of information. The Cubes possessed exceedingly high intelligence and they regularly transmitted mission instructions to humans nearby. The mission rewards were incredible.

Since then, humans rushed out of the confines of the walls and once more set foot on the wasteland!

- Description from Novelupdates