Building The Ultimate Fantasy - Chapter 598

A normal office worker, Toru Minasuki, was swallowed up by a dimensional fissure and reincarnated into a different world. Upon reincarnation, Toru was given a [skill board] by God. Make the most of it to acquire all the necessary skills! Even though he is an “inferior person,” he’ll make his way to the top!

Collection of short stories.

- Description from Novelupdates

"What you do in life, Echoes in Eternity."

The System, who goes by the code name, Thirteen, defied the System God in order to give his previous Hosts’ the chance to change their Fates.

Unfortunately, he was killed by his Father, the System God, and was sent to the world of Pangea to struggle like the Cannon Fodders that he fought so hard to protect.

Armed with his knowledge as a System, Thirteen vowed to change not only his Fate, but the Fate of others whose destinies were tied up with him.

In a world torn by power and corruption, a fallen System will bring out a symphony of change, or lead it to its destruction.

Want to get super vision? Then let’s get some eagle blood.

Want to get super power? Blood of the Bear works great.

Are you going to surpass humans? Exactly, I have vampire blood here.

Do you want to be the ultimate creature? Very well, I have a drop of the blood of the ancient gods here.

…………

Become the headless mayor of the ancient, chaotic city of Arkham, where the gods breed.

Starting from blood therapy, Ross built an extraordinary shelter, a forbidden library, and a museum of the ancient gods.

Ross: We Arkham are full of talented people, and our folk customs are simple, hey! Don’t run! Haven’t visited Arkham Sanatorium yet!

Farming flow, invincible flow, behind-the-scenes black hand flow, Cthulhu.

- Description from novelbuddy