MTL - Start with Batman - Chapter 342 there's something wrong with this place

Chu Hao was reborn in another world. With the memory of his past life, he embarked on a journey to conquer the heavens and the worlds, and finally became the Eternal Heavenly Emperor.[Rebirth], [Exploration], [Battle]

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

In a universe where starships rule supreme and galactic empires clash for dominance, Kallus, a visionary gamer and strategist, finds himself thrust into an extraordinary reality.Awakened aboard the [Obliterator-Class Star Dreadnought], a vessel born from his own imagination but perfected by a Supreme Being, Kallus must rise to command a fleet that could shape the fate of the cosmos.With a ship forged from mythical adamantium and [mithril alloys], powered by a [Transcendent Dark Matter Engine], and armed with weapons capable of annihilating entire fleets, the Obliterator is more than a warship—it’s a legend incarnate. But Kallus is not alone. Alongside him is the Red Empress, an advanced AI infused with a power of creation and knowledge itself, guiding him with missions that unlock untold power and potential.

Witnessing her fiance’s derailment with her own eyes, she married a “poor and poor” poor second generation.

The next day, jewelry, diamonds, haute couture clothing, luxury cars and mansions were received softly.

He is a domineering president who is cold-hearted and black-bellied in front of others, and he is also a three-good man who spoils his wife, loves his wife, and loves his wife.

 …

Rumor has it that his cleanliness allergy makes him never touch a woman, but she is a complete exception;

Rumor has it that he is an ascetic man who is so indifferent to strangers that he is extremely gentle in front of her;

Rumor has it that he is generous and neat and never cares about others. After his marriage, he overturns countless vinegar jars every day…

Her married life: sweet, sour, sweet, sweet, bitter, salty;

His married life: Chai, rice, oil, salt, sauce, vinegar, vinegar, vinegar, vinegar, vinegar, vinegar, vinegar, tea.

- Description from novelbuddy