Her Kindergarten is Full of Villainous Students - Chapter 142

Ethan finds himself mysteriously transported to another world, where the strong reign and the weak perish.Welcomed by a kind farmer who decides to help him upon seeing his poor condition, Ethan begins to hope for a new life.However, his dream is shattered when an acquaintance deceives him, leading to his sale at the slave market. Desperate and confused, Ethan wonders what he has done to deserve all this.“Which deity have I offended to deserve all this?”Just when he thinks all is lost, fate has another surprise in store for him, once again changing the course of his destiny.

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

Ever since he was little, Xi Jia’s yin energy was strong, and every day he saw ghosts and ran into ghosts. One day, he accidentally broke the protection amulet. Celestial Master Ye Jingzhi happened to pass by and helped. Are ghost catching Celestial Masters all legit masters? WeChat official accounts, Taobao online shops, looking at gossip tabloids every day. Since then, Xi Jia has refreshed the lower limit again and again, and met a group of completely unreliable Celestial Masters. Binding spirits, doppelgängers, the Mausoleum of the First Qin Emperor, the ghost market of Poyang… The door to a new world is slowly opening.

Set in an urban city with supernatural elements, this is a love story between Xi Jia, who has a body of extreme yin, and Celestial Master Ye Jingzhi, nicknamed the King of Hell. The seemingly weak Xi Jia, in actuality, can rip apart ghosts with bare hands; the seemingly cold Ye Jingzhi, in actuality, is shy and gentle. A marriage contract binds the fate of two people together. See how the two people overturn the heavens in the gossipy and wacky metaphysical world.

- Description from Novelupdates