August von Earlshide, alternately called Aug or Gus, stands as crown prince of the Earlshide Kingdom and firstborn heir to King Diseum. A product of royal upbringing, he masterfully balances benevolence with cunning, championing merit over lineage while upholding his family’s laws with unwavering precision. His keen intellect intertwines with a mischievous streak, most evident in his teasing dynamic with Shin Wolford—a cousin-like rapport born of intergenerational family ties. This casual closeness often leaves childhood companions Julius von Littenheim and Thor von Flegel maneuvering in his charismatic shadow. A visionary strategist, August brokers interkingdom alliances to combat demonic threats, his tactical mind deciphering patterns from human-to-demonoid transformations to political corruption among status-abusing nobles. Preferring subtlety over overt authority, he strategically delegates critical operations to trusted allies like Shin rather than flaunting royal privilege. Ranked second among S-class Advanced Magic Academy students, August commands formidable offensive and defensive spells refined through sparring sessions with Shin. His "Thunder God" moniker stems from a legendary duel where lightning magic annihilated a colossal crocodile. A silver-tongued orator, he galvanizes public morale and navigates diplomatic negotiations with foreign leaders through measured eloquence. Behind his princely demeanor lies a puppeteer’s instinct, engineering scenarios to provoke unguarded reactions—a trait earning Shin’s sardonic "Black-Hearted Prince" label. He orchestrates emotional resolutions, nudging Shin toward confessing feelings for Sicily von Claude while soothing fiancée Elizabeth von Coral’s insecurities with artful reassurance. Familial bonds manifest in affectionate teasing of younger sister May, contrasting his political sharpness. Documented accounts consistently portray August threading the needle between crown obligations and personal connections, his character defined by layered loyalties rather than overt transformational arcs in available records.