Pop Kim is one of the NPC characters in Fate/Regalia and Master of Rider. She is the true horror of the newcomers in Athena Academy, plaguing both those who are new to the Duel Chart and those who are just new to OLYMPUS. There are little people who can keep this fickle person in check, and she is a strong believer of "The strong create the rules" way of thinking. Known for her viciously sharp tongue and rude attitude towards anyone, rest of the Athena Academy usually just tries to ignore her. Those who plan on climbing up the Duel Chart, however, can't.
Voted as the "Worst Personality in the Academy", Pop Kim is, described with a single word, "rude". She cares about no one, respects no authority and enjoys tormenting those weaker than her, and even those at her level. She has been compared to hyena in most cases, as she has no qualms about retreating from the scene of her crimes with a loud laugh if someone more powerful than her approaches. There is no remorse in her actions whatsoever.
Unknown as to before her enrolling to Athena Academy. During her time in Athena Academy, Pop Kim has become notorious for staying in low rank of Duel-Chart in order to torment those new to the whole ordeal.
"When it comes to her abilities, she is an ultimate barrier-type magus, with skills that earned her a chance to defect to the Clock Tower and join the Battalion of Kron. It was, in fact, Wizard Marshall Barthomeloi Lorelei herself who tried to arrange Pop Kim's defection. However, Pop Kim refused, and even went as far as crushing the five members of Battalion of Kron with inverted barriers. They were later sent back to the Wizard Marshall in a single suitcase"