MTL - Low IQ Supporting Female, Waiting for Death Online - Chapter 88

The apocalypse arrived, and Irving was betrayed and killed by his own girlfriend.After his rebirth, he was chosen by the Will of the Blue Star to be an internal beta tester of the Shelter Game, starting with a [Tenfold Drop Rate] and becoming a [Necromancer]!Ferocious and brutal exotic beasts are all tamed by him, gradually forming a powerful “Exotic Beast Legion” under his command!Building sanctuaries, hoarding supplies, upgrading outer walls, setting traps...Constructing the most powerful fortress in the apocalypse!“Since I have been given a second life, I will trample those who've betrayed me once under my feet!”...When the Dark Lord descended, Irving's shelter had become the strongest on the Blue Star!“You evil creatures, dare to covet Blue Star?”“Come on! Let me show you what true despair is...”“Remember, from now on, Blue Star is under my protection! Got it?”

Synopsis one: “The people here aren’t innocent. They’re cunning, they’re greedy, they’re ruthless.” “The nobles here aren’t noble. They’re selfish, they’re arrogant, they’re schemers.” “I was once furious about this. But now, I just pity them. This is a dark world, from the moment they were born, they had no choice but to live life like this. Now, I will give them a choice.” “I want to bring them food so they can be freed from hunger, that will give them morals. I want to bring them peace, so they can have beliefs. I am a transmigrator who has come from a faraway world, I want to bring the fire of civilization to this dark and barbaric place. I know I’m doing the right thing. Eliminating hunger, eradicating plagues, suppressing evil, and ending wars. I will give a second chance to anyone who wants change.” “Then, I’ll kill all of those shameless, brainless idiots.”

Synopsis Two: Kang De transmigrated. He didn’t expect this new world to have sorcerers, dragons, and even gods who were mythical beings that only existed in legends. To protect himself, Kang De had no choice but to train and fortify his body consistently. Soon, he realized that malicious intent didn’t just come from those who possessed extraordinary powers, but also the greedy aristocrats and the king, who was a ruthless dictator. “What? Did I overthrow the nobles? I just wanted to lead the people in my territory to live better lives?” “Why are you guys calling me the king? I don’t want to be a king!” By the time Kang De realized what was happening, his territory had already become the most powerful human kingdom on the continent. The Dragon Emperor called him a brother and powerful sorcerers formed his army. The only targets left now were those gods who saw themselves as superior beings!

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

A continuation from where High School DxD Volume 25 left off.