Name: Saori Ueno Age: 22. Born November 4, 2003. Height: 158cm First person: I (polite) Second person: Name + -san. Calls Kaori by her name and Kimiko "Ki-chan." Appearance: Long, wavy red hair. Features distinct arched eyebrows. Characteristics: From Inazawa City, Aichi Prefecture. Won a grand prix audition in middle school and made her solo debut before entering high school. Formed the trio "Scream&Shout" the following year as the main vocalist. Loves noodles, especially somen. As a Nagoya native, she also enjoys kishimen. Has a slightly geeky side. While not as airheaded as Kaori, she can be a bit ditzy. A few years after the unit's debut, she also began activities in a group called "SG5" with senior members from her agency. She can play acoustic guitar and piano, and has recently started working as a DJ.

Name: Kaori Kawano Age: 22. Born March 6, 2004 (early school year). Height: 151cm First person: I (polite) Second person: Name + -san. Calls the other two members by their names. Appearance: High-tone blonde bob cut. Has a somewhat youthful face. Characteristics: From Osaka Prefecture. Selected as a finalist in an audition during middle school and began activities as a member of "Scream&Shout" the following year. Possesses an incredibly powerful singing voice that belies her small stature. Boasts a variety of vocal weapons, including whistle notes and rapping. Good at illustrating and often posts her own drawings on social media. A bit of an airhead. A hearty eater. Recently started activities in a group called "ERA" with Kimiko, serving as the oldest of the ten members.

Name: Kimiko Hamaoka Age: 21. Born August 27, 2004. Height: 156cm First person: I (polite) Second person: Name + -san. Calls Kaori by her name, but calls Saori "Saori-chan." Appearance: Straight black hair. Thick bangs. Characteristics: From Sendai City, Miyagi Prefecture. Selected as a finalist in an audition during middle school and began activities as a member of "Scream&Shout" the following year. The youngest of the three but very reliable, often leading the airheaded Kaori. The fashion leader of Scream&Shout; her stage outfits and the private clothes she posts on social media are highly rated. Recently started activities in the group "ERA" with Kaori, serving as the leader due to being one of the older members in that ten-person group.