TV-Series
Description
Haru Yūki is a twelve-year-old idol belonging to the Third Entertainment Division, the unit at the heart of The Idolmaster Cinderella Girls U149. Physically, she stands 140 centimeters tall and weighs 37 kilograms, with orange hair and purple eyes. Her birthday is July 17.

Haru is characterized by her athletic and tomboyish nature. She is highly skilled in sports, with a particular talent for soccer, which is listed as one of her primary hobbies. This athleticism is paired with a personality described as harsh, straightforward, and no-holds-barred. A distinctive aspect of her speech is her use of the pronoun ore, a traditionally masculine and casual way for a young person to refer to oneself, which further emphasizes her rejection of stereotypically feminine behavior.

Her initial motivation for becoming an idol was not born from personal desire. Instead, she was compelled to join the agency by her father, who hoped that the experience would encourage her to act and dress in a more feminine manner. Consequently, she shows extreme displeasure with cute or frilly clothing and has openly protested when required to wear costumes like a bunny suit for events. Despite this reluctant start, her attitude evolves as she engages more deeply with the work. She later admits that her dream has shifted to caring much more about being an idol since she was scouted, expressing a desire to experience many new things. In the context of the U149 story, she is one of the elementary school-aged idols assigned to a newly promoted producer who is tasked with managing this unconventional group.

Within the group, Haru's key relationships are defined by her role as a reliable and energetic peer. Her athletic prowess likely makes her a standout during physical training and dance rehearsals. She is sometimes referred to as a former rival idol, suggesting a competitive streak, and has been known to perform with other characters such as Hiromi Seki and Yuu Oota in other iterations of the franchise. Her development centers on her gradual acceptance of her career as an idol, moving from a place of annoyance and resistance to finding genuine value and ambition in her performances. Her notable abilities are almost entirely physical, centering on her exceptional talent for sports and her high energy level, which she can channel into her idol activities.