Pikachu

Ye Fan was transmigrated to a world where everyone was a beast tamer. As the demonic beasts rampaged around the world, humans were forced to build walls to protect themselves while the beast tamers fought the demonic beasts.
As the day of enrollment got close, Ye Fan only had a pet beast, the Cute Sparrow, with him.
“A Cute Sparrow? Don’t you have a better beast? You’re helpless.”
“That beast’s potential is just too bad. Even if it evolves into an Iron Eagle, it can only reach the Intermediate Grade 1.”
“You’re trying to get into the academy with that? Dream on!”
He was mocked and laughed at, but Ye Fan remained calm as he looked at the system’s menu.
“Hidden evolution path.”
“Divine Path: Infinite evolution potential. King Grade achievable.”
His sparrow started to evolve into a Golden Scale Eagle, then the Illusion Feather, the Nine-heaven Roc, the Flaming Phoenix, and finally, the Garuda.
“The f**k? Are you telling me that’s a Cute Sparrow?”

I've Activated The Hidden Path of Beast Evolution

"Big White is still being used as a mount by Master!"

Rose also appeared. Little Nine looked at the Firmament Dragon King and smiled. Big White was the name she gave the Firmament King. Because the Firmament King was white-gold all over and was very beautiful, she named him Big White.

When the Firmament King heard Little Nine's words, it howled unhappily. Then, it wanted to throw her off and shake its body.

Ye Fan smiled helplessly, then patted the fox girl's head.

"That's all for small talk. Prepare for battle!"

"Understood!" Little Nine blinked. Then, she looked enthusiastically at the Giant Stone Worms that were charging over.

In the next second, countless flames ignited behind her. The flames condensed into a huge dragon with sharp claws and teeth that pounced at the insects.

This Won't Do