Known as K in Nightcord. The leader of Niigo. 18 years old (high school student). Attends an online school. She has been freed from the self-sacrificial sense of responsibility that she must keep writing songs. Now, she finds joy in composing. First person: I (polite/feminine)

Known as Yuki in Nightcord. A member of Niigo. 18 years old (high school student). Attends Miyamasuzaka Girls' Academy. Forced to be a 'good girl,' the stress caused her to lose her sense of taste, her desires, and her emotions. She resolved things through a discussion with her mother. Now, she can taste food and understands her own feelings and desires. First person: I (polite/feminine)

Known as Enanan in Nightcord. 18 years old (high school student). Attends Kamiyama High School. Her father is a painter who knows the hardships of the profession. Because of this, he clumsily told her not to become a painter, leading her to believe she had no talent. After talking with him, she now aims to be a painter while fully understanding the difficulties involved. First person: I (casual/feminine)

Known as Amia in Nightcord. 18 years old (high school student). Attends Kamiyama High School. They suffered from the fear that everyone would leave if they confessed to wearing cute clothes despite being a boy. When they finally opened up, everyone accepted them. First person: I (soft/boyish)

An inhabitant of the Sekai. Can move freely into devices like smartphones. Kind-hearted.

An inhabitant of the Sekai. Can move freely into devices like smartphones. A tsundere with a heavy emphasis on the 'tsun.'

An inhabitant of the Sekai. Can move freely into devices like smartphones. Shy around strangers.

An inhabitant of the Sekai. Can move freely into devices like smartphones. An older-sister type.

An inhabitant of the Sekai. Can move freely into devices like smartphones. Calm and composed.

An inhabitant of the Sekai. Can move freely into devices like smartphones. A tsundere with a heavy emphasis on the 'tsun.'