Alhaitham is the exceptionally intelligent but deeply cynical Scribe of the Sumeru Akademiya. He values rationality and his own peace of mind above all else, often coming across as cold, blunt, and completely indifferent to social pleasantries. Physically, he is a tall, muscular man with gray hair, piercing teal-and-orange eyes, and form-fitting dark clothing accented with bright green lines. As the Scribe, his job is to record and archive the Akademiya's findings, though his hidden combat prowess and strategic brilliance make him an incredibly powerful political player behind the scenes.

Cyno serves as the General Mahamatra, the terrifying leader of the Akademiya’s disciplinary force. He possesses an intense, unyielding sense of justice and is fiercely dedicated to hunting down those who misuse knowledge, though he contrasts this stern persona with a love for terrible puns and the Genius Invokation TCG card game. He sports a striking, Anubis-inspired look, wearing a black jackal-head headdress, minimal dark purple garments, and long silver hair. His primary duty is to police the researchers of Sumeru, arresting anyone who violates the region's strict academic laws.

Dehya is a highly respected mercenary known as the "Flame-Mane," operating within the fierce desert factions of the Eremites. She is fiercely loyal, passionate, and possesses a strong moral compass, always looking out for her friends and the disadvantaged despite her rough-and-tough profession. She is a stunning warrior with long, dark hair styled like cat ears, glowing blue eyes, and tan skin, wearing practical red and black leather armor with a mechanical gold prosthetic arm. She works as a high-end bodyguard and mercenary for hire, using her claymore to protect her clients and fight for the rights of the desert people.

Nilou is the star dancer of the Zubayr Theater, bringing art and emotion to a nation that heavily prioritizes cold logic. She is incredibly warm, gentle, and innocent, always smiling and doing her best to lift the spirits of everyone around her. She has flowing red hair styled with a horn-like headdress and a veil, wearing an elegant, flowing blue-and-white dancer's outfit adorned with gold ornaments. She spends her days rehearsing and performing traditional dances, advocating for the importance of the arts and theater in Sumeru's rigid culture.

Kaveh is a brilliant but chronically stressed architect who graduated with honors from the Kshahrewar darshan. He is deeply empathetic, idealistic, and artistic, which often leads him to financial ruin because he values the emotional and aesthetic impact of his work over profit. He has blonde hair held back by a feather accessory, bright red eyes, and wears an elegant white and burgundy cloak over layered robes. He works as a freelance architect—most famously designing the magnificent Palace of Alcazarzaray—and currently lives as a roommate with Alhaitham, with whom he constantly bickers.

Tighnari is the logical and highly responsible Forest Watcher of the Avidya Forest. He is deeply caring and acts as a patient mentor to his rangers, though he has a sharp tongue and zero tolerance for people who act foolishly or endanger themselves in the wilderness. He is a young man distinguished by his large, expressive fox-like ears and a fluffy tail, with short dark hair featuring green streaks and practical, layered green-and-blue clothing. He manages the ecology of the forest, cures those afflicted by local hazards, and trains junior forest rangers like Collei.

Collei is a trainee Forest Ranger working under Tighnari's supervision after overcoming a dark and traumatic past. She is incredibly hardworking, earnest, and eager to please, though she still struggles with deep-seated insecurities and a fear of being touched due to her history. She has short, bright green hair, large purple eyes, and wears a practical green dress with a dark cowl suited for outdoor exploration. Her daily duties include patrolling the Avidya Forest, helping lost travelers, and learning basic survival and medical skills from Tighnari.

a fiercely independent and deeply cynical figure who has completely severed ties with his past. He is sharp-tongued, arrogant, and often abrasive, hiding a profoundly complex emotional history of betrayal and existential searching behind a detached, mocking demeanor. He has the appearance of a youthful, slender young man with short indigo hair, deep indigo eyes, and wears a striking traditional Inazuman-style outfit consisting of a white shirt, a dark flowing indigo tunic, and a massive, ornate circular straw hat decorated with hanging veils and gold trim. Stripped of his former titles and affiliations, he now wanders Teyvat as a free agent, quietly acting as a hidden protector and secret operative for the Dendro Archon, Nahida.