Substitute Bride’s Husband Is An Invisible Rich Man - Chapter 24 - Extravagantly

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

Reborn into something new and in a new world, Morgana found herself with no memories about her past. She lost them when a powerful entity took pity on her and offered her the chance to be reborn in her own primitive world.A letter left by her past self told her about... well, nothing really. The old Morgana was glad when she learned that she would lose her memory due to being reborn as part of this deal. She accepted without hesitation, especially after the powerful entity explained everything in detail.“WHAT!” Morgana exclaimed, reading the letter. “We’re both BIG perverts! And what do you mean by spreading my legs and pushing out many babies?”“EXPLAIN!”Reborn with stunning silver hair, crimson eyes, and a Futa, Morgana now belonged to a new race called Breeder.Follow the journey of Morgana as she tries to survive in this primitive world, with a LOT of Breeding.…[Warning: This story contains heavy R-18 sexual content, including pregnancy, futanari, Incest, breeding, and more. Read at your own risk.]

It was only after Su Yayan's death that she realized that she was a malicious cannon fodder female character who became a scapegoat in a Mary Sue story.