Rainy Dog

A relentless, shadowy hunter who tracks Yuji’s moves, embodying the omnipresent threat of the underworld. Quiet, efficient, and unyielding, he looms as a constant reminder that violence is inescapable. His presence heightens the noir atmosphere and tests the protagonists’ nerve.

A former yakuza operative who now works as a pay-per-hit assassin. He balances ruthlessness with a stubborn attachment to his son and a complicity with Lili that complicates his loyalties. His world-weary, pragmatic outlook makes him both dangerous and capable of tenderness.

A prostitute who becomes Yuji’s lover and reluctant guardian to his son. She is practical and tough, yet capable of warmth, creating a fraught domestic life amid violence. Her relationship with Yuji anchors some of the film’s fragile humanity.

A trans woman who shelters Yuji and Lili after a flight from danger. She becomes entangled in the pursuit of a reward and ultimately betrays them, highlighting how survival and loyalty clash in a corrupt system.

Yuji’s mute son, who follows his father and watches the violence with a child’s gaze. He learns to read his name on a page, symbolizing small acts of humanity amid chaos. His presence centers the film’s emotional stakes.

A calculating sibling of a murder victim who leverages legal power to seek revenge against Yuji. He embodies the cold rationality that muzzles emotion in the antiheroic world. His schemes drive a key turn in the escalating vendetta.

An associate connected to the crime syndicate network that anchors the revenge plot. He represents the network's reach and its willingness to mobilize violence to protect or avenge, further complicating Yuji’s already precarious situation.

A figure within the criminal ecosystem who interacts with the yakuza world. He adds to the web of threats and influences the course of the pursuit through his affiliations. His presence underscores the film’s theme of systemic violence.

Owner of the whorehouse where Lili and Yuji’s world intersect. The proprietor embodies the seedy economy at the margins of society and the transactional nature of the relationships depicted. His place is a recurring locale that fuels the story’s gritty mood.