Shizuku Osaka, (桜坂 しずく) is one of the 10 school idols in the Nijigasaki High School Idol Club. She is a first year at Nijigasaki High School. Her image color is light blue. She is a member of the subunit A・ZU・NA.
A recent addition to Nijigasaki High School and first-year. A straight-laced star student, Shizuku is part of the theater club. She's athletic, but poor at ball sports. She wants to grow up to be an actress, and she seeks to use her school idol experience to that end.
Shizuku is an only child and comes from Kamakura, formally having attended Seiran High School. She transferred to Nijigasaki Academy even though she lives quite a ways away.
A calm and collected honors student who is considered a traditional Japanese beauty, often known to be too responsible. Because of this, she is known to take too much responsibility for herself. She's shy and often becomes flustered easily. However, she is still confident and able to stand up to others. She's often strict towards Kasumi, not happy with her lighthearted and teasing nature.
Shizuku loves dogs and acting, often seen rehearsing her lines before practicing her idols activities. She's very passionate and skilled at switching her character.