MTL - The Invincible Dragon Emperor - Chapter 3710 I cooperate

“THE NEW GATE”, an online game that trapped its players and turned into a death game, was now releasing the thousands of players that had been dragged into it, thanks to the efforts of Shin, one of the most powerful players. But after having defeated the last boss and freed everyone, he was swallowed up by a strange light and found himself inside the game world 500 years in the future and unable to leave.

Xue Xi is forced to fall in love at first sight with this dangerous man on their first meeting. With death being the only other option, she makes the first move:

The year was 2026, and the world wasn't what it used to be. Ever since the Abyss Gates cracked open three years ago, spilling monsters and dungeons across the planet, life had turned into a chaotic mess. Cities were half-ruined, half-rebuilt, and people clung to whatever normalcy they could find. Hunters—those brave or crazy enough to fight the monsters—became the new heroes. Everyone else? Well, they just tried to survive.Fin wasn't a Hunter. He wasn't a hero either.He was just… Fin. A lanky 19-year-old with messy brown hair, a chipped front tooth from a dumb skateboard accident, and a power that everyone called useless. Absorption. Sounds cool, right? Like he could suck up energy or steal someone's strength. Nope. All it did was let him “feel” things he touched a little more than normal. He could tell you the exact texture of a brick wall or how warm a coffee mug was—big whoop. No fireballs, no super strength, no flashy moves. Just a glorified touchy-feely trick.“Fin, you gonna eat that sandwich or just stare at it like it's gonna confess its life story?” Meg's voice snapped him out of his thoughts.He blinked and looked across the rickety table at his best friend. Meg was short, loud, and had a wild mop of dyed purple hair that she swore made her look “intimidating.” It didn't.

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.