Shining friendship and strong claws! Metal Cardbot W!

After the Speranza incident, humans and Metal Cardbots began to coexist on Earth.
Jun, a boy chosen by the Metal Breath, and his partner Blue Cop discovered a way for humans and Metal Cardbots to coexist.
Then one day, a "Wild Cardbot" appears, holding a 60 million year secret.

Now, a new encounter begins to shake the world.

(Source: Metal Cardbot Wiki)