Cultivation + Demon Lord x abandoned disciple + sweet on the outside, dark within + possessive pursuit + both virgins, 1v1 + secret love becomes mutual + sharp-tongued but soft-hearted
Song Yu, a disciple of the Taiqing Sect, was fed a love Gu by her senior brother, who sealed her spiritual power and sent her to the Netherworld Hall in exchange for the sect's junior sister.
The Demon Lord Mo Wuyuan gave her two choices: go with him, or be left to the group of demon cultivators outside the hall.
She chose the first, thinking it was just a one-night deal. At dawn, Mo Wuyuan turned on her. "One night isn't enough. The deal is off."
Mo Wuyuan was moody and sharp-tongued, with unfathomably deep cultivation. He kept her by his side, saying he'd let her go once he got tired of her, but never mentioned how many years he'd waited.
Song Yu resigned herself to her fate. But she didn't know that the back of the three-hundred-year-old peach tree outside the side hall was covered in carvings of the same character. The knife marks had accumulated over the years, from when he was a boy to when he became the Demon Lord, with the deepest one cut far into the wood. She also didn't know that the old scar on Mo Wuyuan's thumb knuckle was tied to a long-ago incident she'd completely forgotten.
The little fish he'd waited three hundred years for had finally swum back into his palm of her own accord.
She just didn't remember him.
It didn't matter. She was already inside the Netherworld Hall, and there was plenty of time to help her remember bit by bit, or make sure she never remembered anything but him.