Ancestral Lineage - Chapter 57: Phase 2. Evolution (4).

The Invincible Immortal Emperor reincarnates, taking over the body of a student at the Huaxia Medical College. He displays extraordinary skills both in combat and medicine.In his previous life, he was the undefeated War Emperor and the supreme master of medicine. Yet, he found himself ensnared in the mundane affairs of the world, confronted by endless temptations.Would he lose himself to these temptations or remain steadfast in his principles? Would he succumb to despair and decadence, sinking into oblivion, or would he rise with strength and resilience, reversing the course of destiny?As he sets forth on his path to reclaim his status as the Immortal Emperor, he vows to make the ghosts and gods of the myriad realms tremble in fear!

The unparalleled Demon King Ye Xuan, who was able to heal the death or the living alike and holder of the medicine Holy Scripture, was betrayed and killed by his fellow Demon Kings. But he reincarnated into the body of Ye Xuan, the prodigal son of the Ye family and vowed to himself that he would return to his peak and take back everything that belonged to him!

- Description from Novelupdates

She was drugged by her ex-boyfriend and had her first night with a mysterious man.

As a cultivator, Lan Tian never expected she'd been hurled back to the 1970s countryside!Suddenly stripped of her powers, she's surrounded by mud - brick houses and farmland. Facing farming to social quirks with no modern conveniences, she relies on her cultivator's wisdom and resilience.