Guitarist and vocalist of Leo/need. Though she looks cool and composed, she is a kind-hearted girl who deeply cherishes her friends. She achieved her dream of turning professional by forming the band Leo/need with her childhood friends Saki, Honami, and Shiho. She writes lyrics for their original songs and has recently begun challenging herself to compose using 'Hatsune Miku.' Despite her cool exterior, she is warm, caring, and highly considerate of others.

Keyboardist of Leo/need. A mood maker who is always bright and never loses her smile. Because she was unable to attend school regularly due to a weak constitution, she deeply values spending time with friends, enjoying her youth, and empathizing with those who are suffering—emotions she pours into her songwriting. Although she has the 'sickly beauty' trope, she is the most energetic member of the unit and serves as its primary mood maker.

Leader and drummer of Leo/need. A model student who excels in academics, sports, and character, she is inclusive and gentle. She often struggled with making decisions because she didn't want to hurt anyone, but through her band activities, she has gained the courage to be more decisive. She now supports Leo/need with her strong mental fortitude.

Bassist of Leo/need. Due to her serious attitude toward music, she was often misunderstood as a lone wolf who disliked socializing. Nevertheless, she deeply treasures the members of Leo/need, who ran toward the dream of becoming professionals alongside her and helped make that wish a reality.