Similar to Lord and also to Deborah, Klein was a student at the Ketarh School of Magic, consistently being the top of his class. At some point after leaving the school, he became a member (and the alleged leader) of the World Reformation Council. Despite being a rival of Lord at the academy, he was quite the gentleman and actually respected Lord very much.
| "Patience is a virtue, my lord"|
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|The original Klein actually had died on Moon Island because he didn't want to support Hella and the High Humans. After he died, Hella cloned him and because of that, he couldn't deny or resist their commands for him to open a dimensional door. All those times, he wished that Lord would defeat him as he was the only one capable of doing so, for he make impossible things possible.|
* Stats reflected are base stats per star level without equipments, potentials, or skill bonuses