Gender: Male Species: Human Age: 13 Personality: Curious, cheerful, active, kind, righteous, and selfless. Appearance: Blue hair, blue eyes. Features: He helps the bots wholeheartedly and refers to the Metal Breath he obtained as a token of friendship, never acting coercively. He is bad at lying. He is the owner and master of the Metal Breath and never gives up. He is partners with Blue Cop and treats everyone as a friend.

Personality: Calm, thoughtful, and rational, yet soft and kind. Rather than a leader, he feels like the eldest brother who suffers in many ways because of his energetic younger siblings. Features: He is surprisingly fragile-hearted and was a promising prospect from the Star Guardians (which is why many admired him). He gave the Metal Breath to Jun himself. His vehicle mode is a police car. Weapon: A large gauntlet equipped on the right arm. It is a type that attaches to the forearm rather than his own arm retracting inside.

Personality: Hates complicated things and has a bright personality. He is free-spirited and full of excitement; he can't help but dance when music plays and is quite loud. He is highly sociable. Features: Possesses significant physical strength and endurance, appearing in situations requiring power or defense. His vehicle mode is a dump truck. Weapon: A large shield (as big as his torso).

Personality: Claims to be serious and taciturn, but shows a bellicose and rough side when dealing with enemies, attacking weaknesses first or creating them if they don't exist. However, his sense of duty as a doctor and his common-sense side are also prominent, and he has a meticulous nature. Features: Appears when treatment or medical care is needed. He served as a medical officer in the Star Guardian 13th Unit. His vehicle mode is an ambulance. He is an unlicensed doctor but highly skilled. Weapon: Large medical pincers equipped on the right arm.

Personality: Very intelligent, loves to deceive others as a joke, and is thoroughly prepared. He speaks politely and has a personality like a mad scientist. He has a bit of a boastful side. Features: Self-proclaimed genius inventor of Planet Machina. This isn't just a bluff, as he is the smartest among them and creates various inventions. His vehicle mode is a bulldozer. Formerly a member of the Space Pirate Black Group. Weapon: Bombardment armament equipped on the chest, featuring a chest cannon and Gatling guns on both shoulders.

Personality: Childishly mischievous, playful, and talkative, but takes combat quite seriously and is determined to protect those he acknowledges. He is very bright, a mood maker, and shows a childlike side. Features: His vehicle mode is a VTOL (helicopter-like). He is the youngest among them and only calls Blue Cop 'Blue Hyung'. He loves teasing and constantly taunts opponents during battle. He can fly in vehicle mode. Weapon: A giant shuriken (equipped on the arm).

Personality: Free-spirited and meticulous, but gets flustered in unexpected situations. He always speaks politely and has a gentlemanly disposition, being courteous even to enemies and especially kind to women. (He gets criticized as a flirt because of this, but he doesn't care much.) Features: A self-proclaimed free soul known as the 'Hunter of the Wasteland,' his skills and name are widely known. His vehicle mode is a passenger plane. He can fly in vehicle mode. Weapon: A bow (can transform into a sword).

Personality: Rough, prideful, and bold. He shows a greedy and wicked side when faced with things that stimulate his desire for money or possession, but he is surprisingly clumsy. He never ignores or looks down on those who have proven their abilities. Features: His vehicle mode is a pirate ship. As the former leader of the Space Pirate Black Group, Black Hook's notoriety is very famous and highly recognized. He can fly in vehicle mode. Weapon: A bazooka equipped on the right shoulder.

Personality: Strong-willed and prideful. He criticizes and treats harshly anything that deviates from his standards, but he aims to protect his comrades. He is cool-headed and rational, rarely getting angry, but becomes terrifying if he does. Features: He once dreamed of becoming a Star Guardian. His vehicle mode is a sports car. Weapon: A shield and a sword (the sword is kept in the shield and drawn for battle).

Personality: Timid, honest, and gentle, but bold, serious, and brave enough to take the lead and jump into flames at a fire scene. Features: His vehicle mode is a fire truck. He was an outstanding rescue member on Planet Machina, once hailed as a hero. After escaping Planet Machina, he developed an obsession with putting out fires after his escape pod was caught in flames. Weapon: A giant hammer equipped on the arm.