Divine Pet Evolution System

He was surprised after finding himself in another world!
Although this planet was similar to Earth, spiritual energy started to return decades ago, allowing plants and animals to evolve into monsters! Humans became their food. On the brink of extinction, they discovered the spiritual link where Humans could take the monsters as pets!
The monster Rulers era dawned!
Wang Yao transmigrated into a miserable high school student's body who kept a domestic cat as a pet in the name of a contracted monster! His heart sank into despair, but an emotionless voice in his mind was like a timely rescue!
"The Divine Pet Evolution System has been successfully bound!"
He found he could even transform his pet into the legendary Monster with the System! But his confidence in the System weakened as he began to understand the outside world. If these monsters' strength increased, humanity would be like a herd of sheep waiting to be butchered!
He vowed to keep growing stronger and battle all present or possible risks with a precise aim!