MTL - Harry Potter’s Book of Sin - Chapter 2619 that's how it should be

At home, she was invisible; after marriage, she was a decorative vase; in the end, a sea of flames buried her, and not even her corpse remained. This is the portrait of Han Yuxi’s previous lifetime.

Given a chance at rebirth, she strives to improve herself, wishing only to no longer serve as a foil or a pretty face. Then, she will seek out an exemplary husband and live a life of peace and prosperity. Alas, things turn out contrary to her wishes—she marries a man who bears a blood feud and hatred as deep as the sea.

She turns the world upside-down, but her road to happiness is strewn with setbacks and the sweetness that comes after bitterness.

- Description from Novelupdates

10 years ago, after “the Gate” that connected the real world with the monster world opened, some of the ordinary, everyday people received the power to hunt monsters within the Gate. They are known as “Hunters”.

A Sky God’s Spiritual Foundation. It was the greatest natural treasure in all of existence, but the sacrifices one must make to gain the approval of such an entity was unimaginable.

Ryu is a genius amongst geniuses.

He was born with the four Grand Ancestral Bloodlines. The Lightning Qilin. The Fire Dragon. The Ice Phoenix. The Fire Phoenix.

He was blessed with an Ancestral Grade Bone Structure and Ancestral Grade Meridians. The Ice Jade Crystal Bones. The Chaotic Silk Meridians…

He was bestowed the First Ranked Heavenly Pupils. The Mysteries of Heaven and Earth Pupils…

However, none of it mattered. Born with a False Spiritual Foundation, it seemed that all of his talent would go to waste. Unless…

Unless he was willing to grasp his Fate in his own hands.

With the Legendary Mechanic System, I transmigrated to Marvel Universe to be Dr. Zola’s assistant.

With Mechanical Force Analysis, I can learn every black technology.

Winter Soldier’s arm? I built a better one for you.

Iron Man’s armor? I already made it a decade earlier.

Doc Ock’s tentacles? I am the one who provided core technology.

Hulk’s mutation? Sorry, I was there and got hit by the radiation too.

As for a certain purple potato, can he collect all Infinity Stones?

……

However, I only had one simple ultimate dream. That is to go home…

- Description from Novelupdates