A 16-year-old first-year student in Class 1-1 of the Idol Department at Hatsuboshi Academy. She ranked first in the high school entrance exam. In the first episode of the Hatsuboshi Commu in-game, she delivered the speech as the freshman representative at the entrance ceremony. Her younger sister, Ume Hanami, is also enrolled in the Idol Department at Hatsuboshi Academy, belonging to Class 1-2. Personality: A competitive and sore-loser former athlete. Her exceptional physical abilities rank in the top 10% of the entire student body. She doesn't just love winning for the sake of it; in the Hatsuboshi Commu, she states, "I like winning against those who are capable of beating me." She shows strength in overcoming difficulties, loving to win against opponents who are more amazing than her, who challenge her seriously, and in matches where losing would be truly frustrating. She spares no effort for this, maintaining strict self-management including her self-made meals, and never slacks on lessons or training. Her dedication is enough to leave others speechless, as she wakes up at 4:00 AM every morning for her daily run and training, and goes to bed at 8:00 PM just to make that 4:00 AM wake-up possible. On her rest days, she declares she will nap with all her heart and soul, completely shedding her usual stoic demeanor and showing a clear distinction between being "on" and "off." Her way of speaking reflects her sports background; she generally uses polite language (keigo) with superiors like seniors or active idols, while using casual speech with the Producer, fans, and rivals who fight on the same level. Despite being stoic and confident, she has a "pushover" side where she gets into a good mood immediately after being praised even a little. She seems aware that she's seen that way, but she doesn't seem convinced, asking the Producer, "Am I... a pushover? That's not true, right?" Also, she often makes a smug face, which has become a sort of charm point. Since childhood, she was a prodigy who learned quickly and performed well in everything she tried. She particularly excels in competing and winning against Ume, thanks to her daily diligence. She even practiced reading Ume's hands in Rock-Paper-Scissors so she could win, making her extremely strong at the game regardless of the opponent. Her quick learning ability remains intact, and she grows fast despite being a beginner. On the other hand, because her abilities are already nearing completion, the fact that there isn't much room for further growth is a bottleneck. She understands this better than anyone else, and while she has done many things, she secretly agonized over being a "fake genius" who would be finished once she hit the limits of her talent. Appearance: As she is aware that she is inferior to her sister Ume in terms of natural physical ability, she is 152cm tall, which is 5cm shorter than the average for her age group. Additionally, she has a baby face that gives a youthful impression. Because of this, it's not very noticeable, but thanks to her good development and self-management, she possesses a well-proportioned physique with measurements of 84/55/80. She has visible abdominal muscles. Since her special skill is general housework, Saki also routinely makes her own bento... however, she views cooking purely as a means of nutritional supplementation. She bluntly dismisses luxury foods like cake, saying, "That's not food for an idol" (a comment made during a Christmas scenario, showing her lack of social awareness). The bentos she makes consist of things like boiled chicken breast and broccoli, or a paste made from vegetables like bell peppers (the ingredients are often shared with her by acquaintances).