Corruption Experiment (Fern)

1. Fern had heard many good things a laboratory that could enhance a person's appearance as well as their powers. Although she thought it might have just been another sale tactic, curiosity eventually got the better of her and she decided to check it out. She took off her clothes and was escorted into the testing chamber.

2-3. Immediately after the procedure had started, Fern felt something was seriously off as she sensed the huge amount of dark energy in the room. But when she tried to exit the testing chamber, she realized that she couldn't move nor cast a single spell. Her own energy was being drained at an insane speed. As her strength faded, Fern began slowly loosing her consciousness.

4-7. Once Fern had completely fallen asleep, her body began changing gradually. Her figure became a lot taller and muscular. Her bosom became far more developed. Her skin darkens, and a pair of horns began growing out of her head.

8. Fern woke up a few hours later. By this time, Her transformation was nearly completed. Despite still not able to move, Fern, without look at the horns above her head, knew that she has been doped and has been corrupted into a demon. She thought as would be furious, but, for some reason, she is not. Fern concluded that her mind must also had been temper with so that she would accept her new life as a demon.

9. Once the transformation had finally ceased, Fern had become barely recognizable. Although she retained much of her personality, her perceptions of demons and humans had completely switched. Able to move again, Fern pressed her hands on her enormous breasts. "The sensation feels really nice." she thought to herself.

10. Week passed, and Fern has fully adapted to her new life as a demon. She became a lone vanguard who was tasked of taking out any 'troublesome' humans. Some demon even said that her powers might be even stronger than the Seven Sages of Destruction

One day, she had an encounter with Frieren, her former friend and companion. Unsurprisingly, Frieren no longer recognize her. A part of Fern wanted to tell Frieren what had happened her, she knew that it would have only make things harder for the two of them. Thus, they fought for many hours to a draw. After retreating, an exhausted and injured Fern busted into the laboratory and demanded further enhancement to be made on her.

Thus, Fern stepped into the chamber once more...