Calder Whitetree is an ordinary teenager. Born into a rich family, he lived his life as a sloth, with everything being handed down to him. While attending school, he and his entire class was summoned to a medieval fantasy world brimming with magic and peril. But this wasn’t the fantasy life Calder imagined. Upon arrival, his skills were appraised, revealing he was the weakest link, weaker than the average human, and soon he fell behind his classmates. After barely surviving an assassination attempt by those he trusted, he met with a girl that harbors the same resentment for the kingdom as him, which led him to learn the deeper, sinister truths of the kingdom. He’s determined to take down the kingdom, along with those who betrayed him, and return back to his home world.