You Said It Was an F-Rank Useless Pet, So How Did It Become SSR?

After transmigrating into a world of beast tamers eighteen years ago, Su Yan has finally reached the day she can form a contract.

B-rank mental strength, an ordinary family background, and a "useful pawn" setup from the start.

Everyone thinks she'll contract a useless pet, but instead she spends 300 yuan at the ghost market on a black-scaled lizard that's nearly dead.

"That thing isn't even F-rank."

"Just wait and see."

On the day of the contract, the whole school is stunned!

It's just that there's something a little off about her pet beast...

Other people's pet beasts: loyal, brave, and overwhelmingly powerful.

Her pet beast:

"You wicked woman, I want meat!"

"I'm an SSR-rank, you know!"

"That crooked merchant! How dare he cheat me out of my money!"

"I'm sleepy. I want to go to bed."

When this lizard, regarded by everyone as trash, stands at the summit of all beasts as the Shadow Lord, the entire beast-taming world goes crazy.