Kiro's Sword

Category

item

First appears

Book 6 · Ch. 17

Books

1

Seishen Kiro's sword first appears in Underlord as a distinctive weapon with a bright blue spark curling along its edge, paired with a lion-faced shield to mark the young Seishen prince's martial identity. Across the series, the blade becomes a symbol of Kiro's growth from sheltered heir to battle-hardened Underlord, its luminous edge reflecting both his royal lineage and his personal resolve. Though the weapon itself remains constant, its significance deepens as Kiro wields it in defense of his kingdom and in direct confrontations that test his honor and skill.