Riaru de Reberu Age Shitara Hobo Chītona Jinsei ni Natta - Chapter 3: And at the Park…..

One day, I was given the mysterious power of Hwanmong.

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

Her parents died in planned accident by her uncle. They used her in every way they can. They planned to sue her so she wont take her fathers company back. They want to destroy her life making her penniless. No one knows that she is the not the same girl who was played as puppet in their hands. Five years changed her a lot. Now she is a hidden genius still acting pityfull to take revenge.

America, 1980. No sooner had Xu Yi transmigrated than he was put on the dissection table; then he gradually came to understand the true nature of this world. “Studying medicine can’t exorcise undead demons; I must become an exorcist!” he resolved silently to himself. On a misty, rain-soaked night. “Miss Evil Spirit over there, the night is cold and damp; be careful not to catch a chill! Come over here and warm yourself by the fire!” Xu Yi said, holding a lighter, as the pale gold flame slowly approached the other. The Evil Spirit shrank back, looking at Xu Yi with fear. “Don’t be afraid, I just want to warm you up...” Xu Yi’s face broke into a warm smile, “by setting you on fire!” Ding dong! Ding dong! “Sign-in at the Land of Fear successful, Resurrection Coin awarded!” “Synthesis pathway requirements met, do you wish to combine the following entries?” Psychic + Scholar + Painter = Psychic Painter! Saintly Offspring + Gunfight Technique + Revolver Mastery = Holy Gunslinger! Undead + Revelation + Holy Nation = God!