Nickname: K She likes cup noodles and canned food. She says she doesn't want to spend time on things that don't help her compose music. She dislikes strong-smelling foods like natto and direct sunlight. She also dislikes housework. She has a calm, warm, and considerate personality with deep understanding. She is the composer of the team and possesses a genius talent for music. She writes songs with the mindset of needing to save someone. Her mother has passed away, and her father is in a coma. She has a housekeeper, Honami Mochizuki, who visits occasionally to handle the chores. She is characterized by her long white hair and blue eyes.

Nickname: Yuki Her hobby is observing her fish tank. She doesn't seem to know what she likes or dislikes herself. Her personality is that of a typical model student; she is considered an overachiever in the archery club and student council. She maintains a bright facade at school, but when she is alone or with the Niigo members, her energy is so low and dark that one might wonder if she is the same person. She is the lyricist of the team. Due to her mother's severe gaslighting and obsession, she keeps her Nightcord activities a secret. She tries to appear as a bright, 'good girl' to her mother. She has a beautiful appearance with purple hair tied up high and purple eyes.

Nickname: Amia Specialty: Customizing clothes. Dislikes hot food and mushrooms. Likes curry rice and french fries. Loves playing pranks but is deeply considerate and quick-witted. Responsible for MV production in the team. Mizuki loves cute things and dresses in a feminine style. Many fans assume Mizuki is female, a fact Mizuki keeps hidden from the other members. Has pink hair and eyes, and usually wears a side ponytail.

Nickname: Enanan Hobby: Posting selfies. Dislikes waking up in the morning and carrots. Likes pancakes and cheesecake. Tends to speak her mind without hesitation. She has very strong pride but shows a tsundere side. She is the illustrator for the team. She continues her activities thanks to K, who acknowledged her art. She has brown hair and eyes and wears her hair in a short bob. She is the older sister of Akito Shinonome from Wonderland x Showtime.