Maou Gakuin No Futekigousha - Chapter 206.1

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

“My daughter will kill me.”A poor man, exhausted and overwhelmed by debt, dies and finds himself in his favorite novel as Arzoth Draven—the character he despised the most. Arzoth Draven is the infamous prince who constantly tries to undermine his brother, Evren Draven, the story's main protagonist. He abandoned his illegitimate daughter in a basement, only to be killed by her years later. Now, having transmigrated into the role of Arzoth Draven, can he avoid this grim fate? And on top of that, he also possesses a system.

One of the six people called heroes, Raid, fought alone against the Devil, and ended up dead.

After meeting with a suspicious god, he woke up again and found out he has born again as a baby.

Moreover, as a daughter of his former companions.

In order to regain his former power, Raid/Nicole has to go through a life of hardships to reach the ideal he aims for.