Margrave's Bastard Son was The Emperor - Chapter 280

A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.

I never thought I had meaning to my life, but I guess I have a talent too.

「Get ready. The duel will begin soon.」

An alien race invaded the Earth on June 6, 2128. At the midst of this war, many nations allied with the alien threat and the war nearly wiped out the rebelling humans of the planet. At the edge of mankind's survival, the United Nations Army launched its forces to eliminate the immediate stellar threats that loomed over Earth.

General Seeker Carlean, commander and leader of the mission, risked and gave his life to destroy the immediate stellar threat. The battle was won though Earth lay in ruins. Perhaps mankind will live to see a few years of peace before the alien threat returns to wipe out their existence.

At the immediate aftermath of the stellar battle, the fallen Seeker Carlean awakens and finds himself at aged 17, living the peaceful life he lived 16 years before he died.

So begins a new game in the battle for humanity's survival.

I’ve been reborn? Xiao Ziling, who was facing the eve of the apocalypse, pulled a bitter face. The apocalypse isn’t easy to live in, you know!

In order to have a good life in the future, he must first hug a big, thick thigh. Xiao Ziling’s eyes are on the apocalypse’s future king, Chu Zhitian. He strived to be his reliable and capable Younger Brother, in hopes of being protected under this tree’s shade.

Only, why is it so hard to accomplish this small goal?

This big brother, you are a cheat carrier, you should be able to call the wind and summon the rain. Why the hell are you fighting with me for the Younger Brother position?

That big sister who transmigrated, you want to sponge on my family’s Big Brother? Also, please don’t think of me as a thorn in your side. My sexual orientation is very normal.

Cold-faced little brother, do not always look at me with those suspicious eyes. History has never had someone as ordinary as me. I am a reborn man.

Little sister selling meng, where did you come from? Why are you clearer on future events than I am?

……Your mom, what kind of world is this? Xiao Ziling was left in disarray – this world has a diverse variety of transmigration and rebirth loophole cheats everywhere. Even becoming a younger brother requires you to compete for it. Xiao Ziling was seriously under great pressure!

Seems like a big thick thigh must definitely be hugged securely, Xiao Ziling realized.

- Description from Novelupdates