Amon is Tokio's father who accompanies him to Elevenia, an anthropomorphic European kingdom obsessed with soccer. Challenged to a match by Leon, Elevenia's star player, Amon loses a close game and is punished by transformation into a tiny dragon. This event drives Tokio's quest to restore his father's human form by forming a junior soccer team and competing in national tournaments.

As a human, Amon is a skilled soccer player. After his transformation, his role shifts from competitor to a source of tactical advice and comic relief during matches, drawing on his experience to guide Tokio and the team. His personality also changes; initially serious, he becomes more lighthearted and mischievous, engaging in antics like attempting to steal kisses from Fam, the priest's daughter, often resulting in comical rejections. Despite his size, he retains moments of wisdom and insight, particularly about soccer strategy, providing both emotional support for Tokio and tactical observations.

Amon's character development is tied to the team's tournament progress. While others grow personally, his arc focuses primarily on his cursed state. The quest to reverse his transformation motivates the early narrative, though its resolution remains unexplored. His relationship with Tokio is central, emphasizing their familial bond and shared determination.

His existence as a small dragon introduces fantastical elements into the sports narrative, serving as a constant visual reminder of the stakes. He interacts with Elevenia's anthropomorphic inhabitants, including Tokio's diverse animal teammates, highlighting his adaptability and integration into the team dynamic.