Everyone Turned into Animals, but I Didn't

Urgent! My girlfriend is gone, and now there's a white cat in my house claiming to be my girlfriend. What do I do?

The world suddenly changed.

Everyone began turning into beasts within 24 hours.

One day later,

this jungle of steel would belong to the animals.

Su Ye had transmigrated here years ago, but his System had never activated. After the upheaval, he finally obtained his own Deduction System.

From then on,

to live in peace, get married, and have children,

he began steadily growing stronger, deducing martial arts, immortal techniques, and more... Tens of thousands of years later, Su Ye suddenly realized that he had acquired a whole host of titles:

'Grandmaster of Martial Arts'

'World-Creator'

'Heavenly Dao'

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.