Skargo, Cayna's eldest son created by the Foster System for public service, appears as a young adult elf with pointed ears and medium-length hair, typically clad in High Priest robes. A level 300 elf, he specializes in holy magic recovery, status ailment purification, and physical buffs. His abilities include Holy Magic Recovery, Purification Magic, Poison Purification, Movement Up, Flight Magic, Telepathy, and the whimsically granted skill "Oscar-Roses Scatter with Beauty," which produces dramatic visual effects during spells.

As High Priest of Felskeilo and the kingdom's third most influential figure, his competence and dedication are vital to maintaining stability since its founding. Professionally reliable, Skargo displays a flamboyant and enthusiastic personal demeanor that sparks comedic interactions. He harbors fanatical devotion toward Cayna, addressing her as "Mother Dearest" ("haha-ue-dono"), which often irritates her into scolding him or reacting with cartoonish violence like anvil drops—particularly due to his obliviousness to Princess Myleene's romantic feelings.

His sibling relationships are complex: he constantly bickers with sister Mai-Mai over clashing personalities, though they occasionally cooperate. Jealous of brother Kartatz, whom Cayna treats more favorably, Skargo mistakenly attributes this to Kartatz's beard rather than his own dramatic behavior. After initial tension with timid youngest sister Luka, he warmly accepts her into the family; she attempts to coach him on appropriate conduct around Cayna.

Skargo struggles to moderate his exuberance, especially near Cayna, though he gradually shows restraint over time. He inadvertently sparked engagement rumors between Cayna and Shining Saber through a misunderstanding. His name, derived from the French word for snail ("escargot"), follows Cayna's naming theme for her children.