Dreambreaker : The extra from 2393 - Chapter 116: Unnamed

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

R18 ( No One 17 and Under Admitted )On one night, a boy named Ezra is abandoned on road by his father. Aeri, a kind-hearted college student, takes him in and raises him as her own. As years pass, Ezra grows more manly with time and is now deeply in love with the woman he calls “Mom.”To support Aeri, Ezra takes a job at the most famous brothel in town—a vibrant and lively establishment where beauty, desire, and drama intertwine. Working as a host and a male escort, he finds himself entangled in heated encounters, passionate affairs, and thrilling action as he navigates the challenges of the trade without letting Aeri ever knowing about his secret work.Ezra’s journey is filled with unexpected twists, romance, and adventure.

A detective travels across the United States and becomes an agent of the Los Angeles Police Department.

After getting through the initial confusion, he repeatedly solved strange cases, became famous all over the world, and was called the most legendary detective in history…

- Description from novelbuddy

Bought it right away.