Kujibiki Tokushou: Musou Hāremu ken - Chapter 245

Floren, the most renowned realm of all realms, yet forgotten by all. The soul of a person from Earth accidentally crashed into this unexplored realm, ending up in a dragon egg. Transforming into a crimson dragon with the mindset of a human, Claudius was different from other dragons. He only wished to live an easy life, enjoying his lifespan of thousands of years to its fullest. However, the world is not such a forgiving place, dragging Claudius into countless struggles and death battles. Is it really possible to live a leisurely life?!

- Description from Novelupdates

The Five Impurities descend into the Mortal World, and demons run rampant.Holding a volume of the “Monster Chronicles,” Song Lin traverses time and descends into the body of a Daoist disciple at a remote Daoist Temple on the frontier.He observes that in this world, the old energy of the Six Heavens still lingers, and Witches and ghostly paths dominate.Demons and ghosts hold official titles, order is lost, and humans and ghosts are thrown into chaos.Heretical paths act with impunity, abandoning truth for falsehood, allowing the proliferation of evil forces.Amidst the suffering of the Mortal World and the devastation of life, Song Lin discovers that he can enter the mythological and supernatural tales recorded in the “Monster Chronicles” to obtain Daoist Skills.Shan Hai’s strange legends, myths, and supernatural tales; Pre-Qin Qi Cultivation, Taiyi in the Chu Territory, Penglai’s Independent Immortals, Lingnan’s Witchcraft, Kunlun Immortal Mountains…Slay the Evil Demons of the heavens, master thousands of Daoist Skills.The endless path of the Immortal Dao, I shall relentlessly pursue it.

【sweet! Be sweet! Cool! Keep cool! 1V1+ Almighty! 】

[chronological text + rebirth + fool + ancient martial arts + metaphysics + magic doctor + farming + getting rich]

Qin Xi was reborn.

Reborn in 1983, he was cheaply married to a fool by the superb family, and accidentally inherited the mysterious medicine on the day of his rebirth.

Since then, the silver needle has crossed people and tricks, not only cured the fool husband, but also designed to kick the best family members, leading the husband’s family to prosper…

PS: It doesn’t look good, you hit me! …slightly can’t hit!

- Description from novelbuddy

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.