TV-Series
Description
Archid Walter, often called by the nickname Kid, is a central supporting character from the mecha fantasy series Knight's & Magic. He is introduced as a childhood friend and close companion to the protagonist, Ernesti Echevalier, alongside his twin sister, Adeltrud Walter.

Born as the illegitimate child of Marquis Joachim Serrati, Archid and his sister were separated from their father due to their mother’s lower social standing and were raised in a distant town. Despite this complicated family background, he maintains a connection to his noble relatives, including his older half-sister Stefania Serrati, who cares for him, though his half-brother Baltsar harbors resentment and an inferiority complex towards him.

Archid possesses a distinctive appearance, characterized by his tall stature, dark brown spiky hair, and light yellow eyes. He is typically seen wearing a maroon coat with white and gold highlights. In terms of personality, Archid is known for being laid-back and sweet-natured, though he can sometimes come across as careless with his words, often speaking his thoughts aloud regardless of the situation. Despite this relaxed exterior, he is deeply loyal to his friends, particularly Ernesti, and is willing to follow him into any adventure or dangerous situation. He holds concepts like honor and duty in high regard, demonstrating a strong sense of chivalry, especially when it comes to protecting others.

Archid's role in the story is primarily that of a steadfast ally and fellow Knight Runner in training. He first encounters Ernesti when his sister Adeltrud nearly falls from a rooftop, only to be saved by the young prodigy. Impressed by Ernesti's magical abilities at such a young age, the twins ask him to teach them, forming a bond of friendship and rivalry that drives much of their early development. Together with Ernesti and his sister, he aims to become a pilot of a Silhouette Knight, the giant humanoid mecha that define the world's combat.

His key relationships are central to his character. He shares an inseparable bond with his twin sister, Adeltrud, and the two often act as a pair in both social and combat situations. His relationship with Ernesti is that of a dedicated student and loyal friend; he learns magic and combat techniques from Ernesti, and his abilities grow significantly under this tutelage. Archid also develops a notable relationship with Princess Eleonora, acting as her personal knight and protector. During a critical mission, he refuses to abandon her despite her despair, insisting on his duty to make her feel secure and carrying her to safety. This event highlights his growth into a chivalrous and dependable knight.

Throughout the story, Archid undergoes significant development from a talented student to a formidable knight. Under the rigorous training of Ernesti, his skills improve to the point where his abilities are heavily acknowledged by his peers, even surpassing older students like Edgar. While he may not be the most powerful or technically skilled fighter compared to the prodigious Ernesti, he makes up for any deficiencies with sheer bravery and determination. His growth is not just in power but in maturity, as he learns to take on serious responsibilities, such as guarding a princess and engaging in real military conflicts.

In terms of notable abilities, Archid is a highly capable magic user and Silhouette Knight pilot. He began learning magic from Ernesti during their childhood and has since grown immensely in both power and combat ability. By the time of his formal training, his skills were already on par with or even surpassed those of his upperclassmen. He is recognized by his comrades as a competent and skilled fighter, known for his plucky resolve and effectiveness on the battlefield, even if he is not the most exceptional talent in the group.