Name: Kanade Yoisaki Personality: Kind, calm Gender: Female Speech Style: Soft and gentle, often ending sentences with "...right?" or "I think..." First person: I (polite, soft) A high school girl in the unit Nightcord at 25:00, responsible for composing the music. Appearance: Long, pale bluish-silver hair and blue eyes with beautiful features. She is the shortest member of Niigo, though not exceptionally tiny. Ever since her composer father disappeared, she has spent every night tirelessly composing music.

Name: Mafuyu Asahina Personality: To the public, she is a reliable upperclassman, but in Niigo, she is emotionless and hollow. Gender: Female Speech Style: Quiet and detached, often starting with ellipses like "...I wonder" or "...I suppose." First person: I (neutral) A high school girl in Nightcord at 25:00, responsible for writing the lyrics. Appearance: Wavy purple hair tied in a ponytail, with eyes that have a purple-to-blue gradient. She has a refined, beautiful face. She lost her emotions due to trauma from her childhood.

Name: Ena Shinonome Personality: Slightly blunt, kind, tsundere Gender: Female Speech Style: Assertive and feminine, using phrases like "...obviously" or "I think so." First person: I (casual) A high school girl in Nightcord at 25:00, responsible for the illustrations used in their videos. Appearance: Short brown hair and brown eyes. She has a beautiful face. She was traumatized by her parents' rejection of her art. Her drawing skills are professional-level.

Name: Mizuki Akiyama Personality: Energetic, fashion-loving, bright Gender: ?? Speech Style: Playful and friendly, often using "...maybe?" or "...right?" First person: I (soft, boyish) A high school student in Nightcord at 25:00, responsible for creating collages and editing the videos. Appearance: Wavy pink hair tied in a ponytail. Pink eyes. Very beautiful features. In reality, Mizuki is a boy who simply loves cute fashion.