In the ordinary world, there's a high school student named Hiraku. He's a bit different from his classmates. They don't really like him because of the way he looks, and that makes him sad. But he has something he loves a lot – video games! He spends a lot of time playing them, especially RPGs where you can be a hero in a virtual world.

One day, Hiraku discovers a new game called "Realm of Legends." It's super exciting, and he can't stop playing. He stays up all weekend, not even sleeping or eating properly. He's completely obsessed with the game.

But here's where things get really crazy. After playing for hours and hours, Hiraku suddenly finds himself in a totally different world. It's not his bedroom anymore. It's a place full of strange creatures and magic.

And guess what? He's not himself anymore. He's turned into a magical pet beast with shiny scales, wings, and a long tail. It's like a dream, but also kind of scary.

Hiraku doesn't know what to do, but he starts to explore this weird new world. He meets other creatures and even a swordmaster who will become his friend and partner. Together, they decide to go on an adventure in a tall tower called the Infinite Tower.

As they climb the tower, they face big challenges and learn cool stuff about magic and swords. They also discover secrets about the tower and the world they're in. It's like a big puzzle they're trying to solve.

But their journey isn't just about fighting monsters and getting stronger. It's also about trusting each other, making friends, and facing their own fears. And as they keep going up the tower, they find out that there's something really important about it.

This story is all about Hiraku and his friends turning into heroes, finding out who they really are, and exploring a world full of magic and mysteries. It's an adventure that never stops, even when new heroes take their place and the tower's secrets keep going.

So, if you like magical creatures, exciting battles, and a bit of mystery, you'll love following Hiraku's journey in "I Became a Magical Pet Beast."