How would you defeat my oc Nakako?

Nakako is a 21 years old girl, who lives by her own in the city of Asaka. She's from Japan, and she loves music and videogame and dislikes anime, even though she's Japanese. she got shot by someone, but she still doesn't know who did it. She almost died from the two shots on the neck and the abdomen. She was saved by a mysterious being, called "Obyx" he is currently possessing Nakako's body. Obyx doesn't fully control her body and he cured her wounds. Nakako has acquired Obyx's powers such as the ability to run faster than the speed of light, an insane amount of strength, pulling out black long tentacles out of her back, change form (solid, liquid), capture someone and send it into the void (an infinite world full of darkness with no escape, and the only way to escape) and create shock waves. She has dark scars on the wounds where she got shot on the neck and the abdomen because these are scars of possession, meaning that those scars are keeping Nakako alive, but if someone asks for those scars.