TV-Series
Description
Hajime Do Mon is the owner of the Café Vantelemo. His most significant role is that of the foster parent and guardian to the protagonist, Sogo, having taken the orphaned boy into his care and raised him since childhood. Behind this paternal exterior lies a much richer and more complex background. In his younger years, Do Mon was a soldier who served as the personal bodyguard to Sogo's mother, a scientist researching a mysterious entity known as Lucifer. During this time, he developed a deep, unspoken bond with her, and her eventual death was a defining tragedy from which he never fully recovered. Blaming himself for failing to protect the woman he cherished, he left his military life behind and dedicated himself to raising her son, Sogo, as his own.

Do Mon's personality is defined by a quiet strength that masks a profound sense of regret and a fierce, protective nature. Having witnessed the dark side of power and lost someone precious to political machinations, he carries the weight of that failure with him. This past trauma heavily influences his present actions; he is a naturally worried and cautious figure, especially when it comes to Sogo. While he runs a peaceful café and provides a stable home, his primary motivation is to keep Sogo safe from the dangerous world he knows exists beyond their doorstep. When Sogo becomes entangled in a grand adventure and decides to protect the mysterious girl Felia, Do Mon is deeply conflicted. He openly confronts Sogo about the peril of his path, arguing from a place of genuine fear that his foster son is rushing headlong into the same kind of heartbreak and loss that scarred him. His motivation is not to stifle Sogo's heroism but to prevent him from enduring the pain of failure.

Within the story, Do Mon serves as the anchor to Sogo's past and the emotional core that motivates the young hero. His role evolves from that of a simple shopkeeper to a mentor figure whose past is intrinsically linked to the central conflicts of the series. His relationship with Sogo is the most developed and emotionally resonant in the series, built on years of unspoken gratitude and genuine love. Despite their argument that causes a temporary rift, Sogo constantly expresses his deep appreciation for all that Do Mon has done for him, while Do Mon fears that their fight has caused Sogo to hate him. Do Mon also has a past connection with a military man named Gus, who once looked up to him before Do Mon retired from service. This history allows Do Mon to move independently through the world of soldiers and mechs, attempting to clear a path for the children from the shadows.

Do Mon’s character development is tragic but complete. Initially presented as a retired, peaceful man, a flashback reveals his origins as a capable and dedicated soldier. When Sogo refuses to give up his quest, Do Mon makes the critical decision to return to his old ways. He sheds his civilian persona, dons his military uniform, and goes on the offensive against the enemy forces to assist the children in his own way. This regression to his former self is not a step backward but a final act of love. In a climactic confrontation, Do Mon is fatally wounded. He spends his last moments at Sogo's mother's grave, looking back on his life and tearfully expressing his love for Sogo before walking into a fatal trap. His death serves as the ultimate catalyst, forcing Sogo to stand on his own and embrace his destiny.

Physically, Hajime Do Mon is an adult male with brown hair and brown eyes. His appearance is characterized by a beard and glasses, and he is often seen wearing a neckerchief and suspenders. In terms of notable abilities, his time as a bodyguard and soldier has left him with considerable combat skills. He is proficient in piloting mecha and is a capable hand-to-hand fighter, as demonstrated when he goes on a solo mission against armed forces. While he tries to leave this violent past behind, his effectiveness when he returns to action proves that his skills have not dulled with age, underscoring the tragedy of a man who was always more capable as a protector than as a peaceful shopkeeper.