Baka to Test to Shoukanjuu‎ - Volume 7.5, Me and Doubt and a Mans Pride

One day, Zhang Fan, a poor medical student, receives a medical system from the future. This turns him into a new shining star in the medical field. Along the way, he must face medical corruption, competition, and infighting from other doctors, and even find time for a love life as he strives for the top of the medical field!

What happens when a fanfic author with a habit of lying and scheming suddenly finds himself as a self insert during Duelist Kingdom? What happens when you have Yugi, Joey, Kaiba, and the rest encounter someone who knows all about every major player in their saga... and sees no problem with abusing said knowledge? Chaos, dear reader. Sweet, sweet chaos

Su Yao passed through and traveled to the Marvel world to become a mutant. He was still in the experimental base. He expressed a little panic…

Fortunately, at the critical moment, the mutant ability ‘imitation’ was awakened to imitate the opponent’s ability!
…
Imitation object→Orochi (title: Sun God, Will of the Earth)
Imitation object→Wanda (title: Scarlet Witch, owner of chaos magic)
Imitation object → Sun God…
…
Professor X: “We must find him as soon as possible and guide him to control his power to avoid causing irreparable disasters!”
Magneto: “You are my child???”
Thor: “Brother?”
Loki: “?”

- Description from novelbuddy

A suffering MC novel—the main character must be forced to suffer, be oppressed until they’re hovering between life and death, dying and living here and there. They can have a golden finger, but before getting it they must pay the price. They can also have beautiful women, but all are snake and scorpion beauties, able to look at but not eat.

“Curse” is just that type of suffering MC novel. The main character Xi Wei, after being forced to experience numerous sufferings, had, at last, become the most powerful, at the same time linking together with the world’s qi and fate. After he was oppressed too miserably, he committed suicide and buried the entire world with him.

Zeno transmigrated, in the end arriving at “Curse”.

Zeno was adopted by the MC, finally becoming the number one person/wife.

Zeno: Help, I don’t want to be destined to be raised by this perverse person!

All living things (wipe away tears): You must rescue this world, ah.

Xi Wei: Come over here.

- Description from Novelupdates