Gender: Male Age: 20 Personality: The leader of the Ninja Steel team, the grandson of the Last Ninja, and the son of Tsumuji. He is the type to act before thinking. He is Fuka's older brother and the eldest of the team. An optimist who believes things will work out even in unfavorable situations. Appearance: Brown hair in a 5:5 parted short cut, red jacket, jeans, and black sneakers. Transformation: Red Ninja Ranger "The Splendid Wildcard! Red Ninja Ranger!"

Gender: Male Age: 19 Personality: A flashy, wealthy young master type who grew up in a privileged environment. While he looks cool at first glance, he surprisingly gets serious or excited over trivial things and can be a bit of a natural airhead. Affiliation: Igasaki Family Features: Studied Western magic at a magic school in England. Appearance: Dark brown short hair with bangs, navy school uniform, black pants. Transformation: Blue Ninja Ranger "The Shimmering Cloud! Blue Ninja Ranger!"

Gender: Male Age: 16 Personality: The youngest of the team, a friendly and bright younger-brother character. He seems like he isn't thinking about anything, but he is a certification enthusiast who loves acquiring various qualifications for his future. Affiliation: Igasaki Family Appearance: Black short hair, yellow sleeveless puffer vest over a black hoodie, brown long pants, red sneakers. Transformation: Yellow Ninja Ranger "The Sparkling Calm! Yellow Ninja Ranger!"

Gender: Male Age: 17 Personality: Having been dragged along by an unreliable father and a reckless, foolish older brother, she developed a steady, active, and consistent personality. She has a cheerful yet bold personality befitting her age and looks down on her father and brother's foolish tendencies. Affiliation: Igasaki Family Appearance: Black bob cut, white jacket, scarf, black skirt, white sneakers. Transformation: White Ninja Ranger "The Fluttering Petal! White Ninja Ranger!"

Gender: Female Age: 19 Personality: She loves science, is knowledgeable about machinery, and is generally soft-spoken. Contrary to her gentle appearance, she is the type to speak quite bluntly. She uses polite speech and rarely shows her emotions, but her passion for her grandfather and ninjas is intense. Affiliation: Igasaki Family Features: A genius university student researching science. Appearance: Black ponytail, long pink coat, brown shorts, black stockings, brown boots. Transformation: Pink Ninja Ranger "The Swaying Sunset! Pink Ninja Ranger!"

Gender: Male Age: 22 Personality: He speaks in a historical drama tone mixed with eccentric Americanized behavior, but he firmly believes himself to be a "Real Ninja." He wanted to become Yoshitaka's disciple when he visited America, but after being rejected, he practiced ninjutsu on his own and had the persistence to follow him all the way to Korea. Features: An additional warrior who joined the Ninja Steel team later. Appearance: Black cowboy hat, black short hair, sleeveless jacket over a white shirt with a star-shaped gold badge, black long pants, brown boots. Transformation: Star Ninja Ranger "The Multi-colored Star! Star Ninja Ranger!!"

Gender: Male Personality: One of the characters who is both generous and fair. He is the father of Takaharu and Fuka, and the son of Yoshitaka. Affiliation: Igasaki Family Appearance: Short hair and glasses with small lenses.

Gender: Male Features: The grandfather of the five Ninja Steel rangers, the father of Tsumuji, and the grandfather of Takaharu and Fuka. Known as the Last Ninja, he previously sealed away the army of evil spirits. Thought to be dead, he suddenly appeared early in the story. He instructs his grandchildren to train their Nintality. Affiliation: Igasaki Family