The Evil Prince and his Precious Wife: The Sly Lady - Chapter 2 – Demotion of Wife to Concubine

Due to an unexpected turn of events, Xia Fei consumed a Super Gene Optimization Fluid that bore no brand, expiry date, instructions or stated its place of origin.
Our story begins here…

Resurrection of spiritual energy, high martial arts world. A girl who claims to be from the future finds Mo Fan.

Mo Fan: “Do you know me in the future? Then I will become famous in the future, the martial arts will be unparalleled, and I will be invincible…

- Description from novelbuddy

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

Leiyin accidentally crossed into the One Piece World, and accidentally obtained the Naruto System.