Seth dreams of being a great sorcerer. He wants to be powerful and defeat the Némésis, monsters that come down from the sky. But his eagerness constantly gets him into trouble. He can’t seem to avoid angering the villagers and even his guardian, Alma. One day, an enormous Némésis really attacks the village! Determined to save the world, Seth embarks on a journey in search for the “Radiant,” the legendary lair of the Némésis. Making new friends, fighting tough enemies, and confronting hardships, Seth’s adventure begins!
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(Source: Crunchyroll)

Also goes by the names Shintaro Ohata and Shintarou Oohara.

José Bardomiano Miranda González is a Mexican voice actor.

Seth, Mélie, and Doc encounter new allies in Caislean Merlin—the stronghold of the Knights-sorcerers, a group that is also after the monster called Némésis. But Caislean Merlin is plagued by the Spectrum Némésis, mysterious beings that are rumored to be harbingers of catastrophe. Will Seth be able to discover the secret behind this new form of Némésis? His adventure accelerates with the addition of Ocoho, a girl who hopes to become a Knight-sorcerer, a farewell with Mélie and Doc, and a clash with the malicious Merchant-Barons! And all this with the Inquisition still at his heels!
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(Source: Crunchyroll)