MTL - Unparalleled Concubine - Chapter 7 give it a try

My childhood friend went to the academy.

Summoned to be a hero in another world, Liu Ji’s fate took an unexpected turn as he landed in a barren wasteland.With no survival skills, he chose an extraordinary method to stay alive: turning into a potato.Rooted in the wilderness, Liu Ji performed photosynthesis and drew sustenance from the earth.Through this humble form, Liu Ji harnessed the spiritual energy of heaven and earth, absorbing the essence of all living things.

A Pill Emperor of his generation was set up by a traitor.

Since then, the world lost a Qingyun Zi and gained an invincible silkpants.

Once again, walking the Great Dao of Alchemy.

How can I defy the heavens . . . with the medicine in my hands!

- Description from Novelupdates

After a tear in reality pulls Kagari Shuya into a white room he discovers a futuristic interface for reincarnating in a different world. After looking through the different races and skills he unlocks a new race, Lucivault, a type of vampire with none of its characteristic weaknesses. All set to start his life in a new world, Shuya is confused to discover that he is enveloped in darkness. As it turns out something went wrong when he was transported and instead of appearing where he was supposed to, he appeared in an underground cave. Shuya faces untold dangers, runs for his life, before finding his way out of the underground world. After escaping he meets his Shishou and begins to learn to fight with a spear. There is also a cute black cat named Rollo.