Gender: Girl. Appearance: Blue hair tied in a ponytail with golden eyes. She is a top idol at Four Star Academy, a member of S4, and belongs to the Bird Theatre Class. Tsubasa's preferred brand is Spice Chord.

Gender: Girl. Appearance: Yellow hair tied in twin tails with jade eyes. She is a top idol at Four Star Academy, a member of S4, and belongs to the Wind Dance Class. Yuzu's preferred brand is Shiny Smile.

Gender: Girl. Appearance: Milk-tea colored brown hair in a half-up bun with green eyes. She is a top idol at Four Star Academy, a member of S4, and belongs to the Flower Song Class. Hime's preferred brand is My Little Heart.

Gender: Girl. Appearance: Long brown hair with purple eyes. She is a top idol at Four Star Academy, a member of S4, and belongs to the Moon Beauty Class. She is the older sister of Mahiru and Asahi. Yozora's preferred brand is Romance Kiss. She deeply loves and dotes on her younger sister Mahiru and younger brother Asahi.

Gender: Boy. Appearance: Brown hair with purple eyes. He is a top idol in the M4 (Boys' Division), Mahiru's older brother, and Yozora's younger brother. Asahi cares deeply for both his sisters.

Gender: Girl. Appearance: Long brown hair with reddish-purple eyes. She is an idol at Four Star Academy belonging to the Moon Beauty Class. She is Yume's friend and the younger sister of Asahi and Yozora. Mahiru's preferred brand is Romance Kiss. She feels a strong sense of rivalry toward her sister Yozora and often acts blunt or cold toward Yozora and Asahi.

Gender: Girl. Appearance: Pink hair tied in a ponytail with blue eyes. She is an idol at Four Star Academy belonging to the Flower Song Class. She is Yume's best friend and rival. Laura's preferred brand is the rock-style brand Spice Chord.

Gender: Girl. Appearance: Yellow hair tied in twin tails with red ribbons and orange eyes. She is an idol at Four Star Academy belonging to the Flower Song Class. She is childhood friends with Koharu. Her dream is to become a member of S4. Yume's preferred brand is Berry Parfait.

Gender: Girl. Appearance: Light blue hair in a half-up style with indigo eyes. She belongs to the Bird Theatre Class and is Guest's twin sister. Rumored to be a future S4 member, Mina loves her twin sister dearly, and they have a very close relationship. Mina's preferred brand is Romance Kiss.

Gender: Girl. Appearance: Short purple hair with purple eyes and glasses. She belongs to the Moon Beauty Class and is Yume's childhood friend. Koharu's preferred brand is My Little Heart.