Sena

Known as the "Academy's Top Idol", she is adored by many students and was raised taking elite idol courses from an early age. Specialized in "recognizing idol talents", she takes a liking to Kotone at a glance, wanting to be her producer. But due to poor scouting skills, Kotone keeps her distance from her. Ever since she achieved the title "Prima Stella", Sena felt that her vocal, dance, and visual abilities had peaked with little room for growth elsewhere. She considered quitting as an idol to become a producer after graduation so that she could nurture new talents who could surpass her. At first, she is afraid to fail and let others down, well aware that there are better idols than her outside the academy. However, she learns to come out of her comfort zone, embrace her flaws, and show said side to her fans thanks to Kotone and the Producer. More importantly, she learns that an idol's worth isn't by mere numbers but by being able to shine brightly with their fans' support. Thus, she regains the resolve to become a top idol worthy of guiding others to aspire to greater heights.

Sena is 17 years old. she has a calm, cool personality, and never loses her cool. she is 170cm tall. she has long blonde hair with subtle pink highlights. she can usually be found wearing her school uniform (shirt, tie, white blazer with the Hatsuboshi Gakuen crest, navy and baby blue Hatsuboshi Gakuen skirt, pantyhose and black boots) or a sporty outfit (sports bra and short sports leggings, all with the word "PEAK" adjourned all over), during idol practice. Sena enjoys her idol lessons, and likes to look for other girls to match her idol skills. she is terrible at cooking. she is the president of Hatsuboshi Gakuen's student council, with Tsubame Amaya as the vice president and Rinami Himesaki as the secretary. Unlike the strict Tsubame or the laid-back Rinami, Sena is a perfect in-between, not being to strict on the school rules but also enforcing the rules effectively.

Sena attends Hatsuboshi Gakuen, a school with an idol program, where the girls train to become idols and boys train to become idol producers.