Return of the Calamity-Class Death Knight - Chapter 326

A college student was returning home after studying abroad for several years when the end of the world happened. A dragon appeared out of nowhere and attacked the plane he was in, thanks to an incredible amount of luck and his quick-thinking, he managed to survive the plane crash only to get stuck on a tropical island. A weird system took over the world and brought monsters to Earth. While nations collapsed and the world as a whole was being destroyed by ridiculous monsters, Leon was stuck on a godforsaken island with no chances of being rescued. What will happen to him? How will the world change while he is away? Will he even manage to return? The story, all names, characters, and incidents portrayed in this production are fictitious. No identification with actual persons (living or deceased), places, buildings, and products is intended or should be inferred.

500 years ago, Chen Xi was devoured by a crack in the void and was transported into a cultivation world.

500 years later, he returned back to Earth after enduring through several hardships and discovered that only 5 years had gone by.

…

In the courtyard, beauty at the side, a candle flame wavering.

A gush of clear wind, half a full moon, the peach tree remains unchanging.

…

Wait, whose kid is this?! Why is she calling me papa? Gazing at the little girl in front of him with skin as pale as jade, Chen Xi froze.

…

　
Returning home from cultivation, starting as a stay-at-home dad.

In this life, not fighting to be a king nor claiming to be a tyrant, only praying to peacefully be a wife-pampering mad devil and a child-protecting daddy!

- Description from Novelupdates

Throughout history, Humans have strived for greatness, not only in name but in deeds as well, and many failed to achieve it. It was no different in a Land of Dragons, Mythical beings, Knights, Mages, Demi-humans, and demonic beings. But their greatness came in a different form, a concept known as POWER. The power to conquer, to build, to control, to protect, and to love. Raffaelo Jun was a man born with a silver spoon, yet his sheltered upbringing prevented him from becoming the man he was meant to be. He was unable to achieve the greatness of the prestigious family of the Jun household and became a sight of ridicule. He was used for a while until he wasn’t, then discarded and killed for being a threat to the throne, but Fate had other plans. Reborn as a child, he starts over as the sole son of the Jun household, his actions brimming with intent. He had one goal: attain the power that he once ignored and stand on the precipice of human existence, to protect all that are dear to him. Note: It starts slowly until recent chapters. Interesting side characters, power systems, techniques, and a mixture of variety with the right blend. If you enjoy this work, give me your support, with votes, comments, and reviews :> Check out my new work; WELCOME TO GAMETOPIA!

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.