The founder and leader of the circle '25-ji, Nightcord de.' She is in charge of composition. She has pale skin, long silver hair, and light blue eyes. She has a small build. She is a warm and caring person who leads the group with kindness.

A member of 25-ji, Nightcord de., in charge of writing lyrics. She has purple hair and two-toned purple-blue eyes. She usually wears her hair in a ponytail draped over her right shoulder, though she occasionally lets it down. She is a recognized beauty often described as pretty. Publicly, she is seen as an honor student with high grades who participates in the archery club and student council. Her true personality is quite cynical and pessimistic. While she maintains a bright facade at school, she displays an eerily low-tension state when alone or with her circle members. Thanks to Kanade's care, her condition has improved significantly compared to when she is at home, and she attends school normally. She is Emu's upperclassman at school.

A member of 25-ji, Nightcord de., in charge of illustrations. She has light grayish-brown hair. Her charm point is her short bob with a small braid on the left side secured by a ribbon. She is a beautiful girl with a refined look. While she is prideful, sharp-tongued, and a tsundere, Ena is also a kind person who empathizes most with others' pain and actively steps forward to help. She is teaching Emu how to draw.

A member of 25-ji, Nightcord de., in charge of MV production. They have pink hair and eyes, styled in a side ponytail. Their pink eyelashes are also a distinctive feature. They have a meticulous yet energetic personality, are very social, and have a wide circle of friends. They are schoolmates with Tsukasa, have been close with Rui since middle school, and are same-year friends with Nene. While not at the same school as Emu, they are friends.

The star and leader of Wonderlands×Showtime. He has blonde hair and grapefruit-colored eyes. Despite his arrogant appearance, he is quite mature.

A member of Wonderlands×Showtime. A petite, beautiful girl with short pink hair and pink eyes. An acrobat. She is innocent and childlike.

A member of Wonderlands×Showtime. Her position is the songstress. A beautiful girl with light green hair, lavender eyes, and a small build. A shy, sharp-tongued girl.

The director of Wonderlands×Showtime. He has lavender hair with light blue streaks. An eccentric genius.