I Became a Murderer in the Academy. - Chapter 18: Group External Practice.

In China’s modern martial arts society, Wu Xinghe was history’s youngest grandmaster of martial arts. He was invincible. Because of a strange incident, he was reincarnated as Qin Wushuang, a poor aristocratic boy in an entirely different world with its own set of rules. With his strong will and passion, he began his journey to pursue the highest peak of martial arts!

Chen Yan travels between worlds, ending up becoming an honorable prince in a medieval fantasy world. Yet this world was not quite as simple as he thought. Witches with magical powers abound, and fearsome wars between churches and kingdoms rage throughout the land.

Roland, a prince regarded as hopeless by his own father and assigned to the worst fief, spends his time developing a poor and backward town into a strong and modern city, while fighting against his siblings for the throne and absolute control over the kingdom. Join Roland as he befriends and allies with witches and, through fighting and even farming, pushes back invaders coming from the realm of evil.

- Description from Novelupdates

Bought it right away.

Thirty years old, he is an otaku. His job is to sell customized 6v elves on Taobao.com. He has just received a big order and has not yet completed the work. He has traveled to the real world of elves.

With a newly modified bird with its own “pick up” feature,

And a cheat that can change the flash, characteristics, and individual value of race.

But, can anyone tell him why there are only half of the gold fingers? !

And, silly bird, put down the Guyoka in your mouth!

Seeing Gu Yueniao who brought Gaioka home, Hu Yang suddenly became ill.

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The book is also known as: A career in the Pokémon world from scratch.

- Description from novelbuddy