He never said {Gojo Satoru x Reader x Nanami Kento}

After Y/n L/n was saved by Gojo Satoru over a decade ago. He had made her a promise that one day, when she got stronger, he'd marry her. Making that her drive, she trained for years and had come back to claim what she calls her prize, but as the story goes on, we find out that was not actually the reason she decided to be stronger.