I Have a Beast-Taming Planet

I'm the son of a Platinum Beast Tamer, and I entered the Beast Taming Academy as the top scorer on the high school entrance exam.

But I summoned an F-rank beast? What a loser!

Yet this loser turns out to be a rare monster from the Ghost Clan!

Later, I somehow form a contract with a Beast Taming planet.

The secrets of the Beast Taming world slowly begin to unfold...