MTL - Poisoning the World: The Secret Service Mysterious Doctor is a Young Beastly Wife - Chapter 3100 This devil is the culprit!

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

- Description from Novelupdates

Reincarnated without memories, given a second chance as a chimera with a limited lifespan. Leon struggles through his strange new life. He attempts to improve his dungeon and evolve himself to live longer and become the strongest Dungeon Master—no. The Dungeon Overlord.Helped by his Dungeon System: the mysterious Ifrit, Zafira a Level 100 Succubus Queen, and his band of trustee goblins. Leon aims to overcome his limits, survive and reach the pinnacle of the world. Whether through trade, domination, or tricking the hero's beautiful party members into becoming his private mercenaries.Leon will face the weakest and strongest beings in the magical world of Umbra and surpass all!

A heroine dedicated to creating great wands and magic props;
A heroine dedicated to 100%(?) avoiding mischief and bad luck;
Meet George Weasley, a resourceful(?) daring, careful prankster for twenty years.
Is their collision a lose-lose or a win-win cooperation?

This is the story of Miss Ollivander, who doesn’t know the development of HP’s story, and the lovely Weasley family, George. In addition to the magical joke product and the Horcrux Deathly Hallows, how can other magical items help in the world of HP?
[I want to save all the characters I want to save]

Editing!
I reread the first few chapters over the weekend and found a lot of typos and bugs. In order not to affect your reading, I will revise a few chapters every few days. The plot will not change, but I will fix the problems raised by my friends in the comments before~ Sorry readers who have read it!
Content Tags: Anglo-American Derivatives

Search keywords: protagonists: George Weasley, Gwen Ollivander ┃ Supporting roles: Fred Weasley, Harry Potter, Ron Weasley, Hermione Granger ┃ Others: HP Doujin

One sentence introduction: If you can’t save the world, then save your brother?

Intention: fall in love with George Weasley, do scientific research, and invent. If you can participate in saving the world, accompany your boyfriend to help.

- Description from novelbuddy