Mai-Mai, a female elf crafted by Cayna’s "Sato-ko System" as one of three NPC children, occupies the role of Cayna’s eldest daughter despite her youthful demeanor. As principal of the Royal Academy in the Felskeilo Duchy, she commands authority and societal esteem. Her personal history intertwines two marriages: first to Sakai, a deceased Helshper merchant, with whom she bore children Keilick and Keilina and later a grandson, Izuku. Her remarriage to Lopes Harvey coexists with her enduring domestic popularity.

Mai-Mai frequently seeks Cayna’s maternal attention, though less overtly than her brother Skargo. During Skargo’s destructive magical outburst, she intervened decisively but drew Cayna’s censure for endangering bystanders—a moment highlighting her resolve in crises and occasional recklessness when protecting family.

Physically, the light novel portrays her as taller and slimmer than Cayna, while the manga accentuates a more pronounced bust. Her narrative arc balances academic leadership with familial complexities, navigating Cayna’s initial struggle to acknowledge NPC-born offspring as true kin.

Her lineage spans generations, with grandchildren and great-grandchildren expanding Cayna’s familial network. Mai-Mai’s journey embodies themes of legacy and self-reinvention, bridging her origin as an artificial creation with her autonomous existence in a world transcending its game-bound roots.