Gender: Female

Hobbies: Cooking

Personality: Energetic and wild. A mysterious girl from the Moon. Curious and selfish with a strong-willed streak. She often drags those around her into her pace. She has a childish side as well.

Appearance: Long blonde hair and red eyes. Her hair reaches her hips. In Tsukuyomi, she has drooping rabbit ears along her hairline.

Gender: Female Age: 17

Hobbies: Tsukuyomi

Personality: A superhuman who earns her own living expenses and tuition. At school, she is known as a top student who excels in both academics and sports. Though she is constantly dragged around by the curious Kaguya, she always gives in to Kaguya's pressure with a resigned sigh. She has a kind side and is weak to Kaguya's puppy-dog eyes. Akira Mikado's younger sister.

Appearance: Purple hair tied in a low bun. Green eyes. In Tsukuyomi, she has navy hair with fox ears and a tail.

Gender: Female Age: 8000

Hobbies: Watching over everyone in Tsukuyomi

Personality: An AI who serves as the administrator and top streamer of Tsukuyomi. She uses her knowledge and experience dating back to the Jomon period to give life advice. Mysterious and always seems to be enjoying herself. As the admin, she monitors everyone's activities and hosts her own streams.

Appearance: White hair in floor-length twin tails. She has a halo-like ring on each side of her head. Light blue eyes.

Gender: Male Age: 23

Hobbies: Streaming

Personality: Puts on a dominant, "king-like" persona for his fans. In reality, he is reliable and very caring. Iroha's older brother. He ends up listening to requests despite his attitude. He worries about Iroha. Leader of Black Onyx.

Appearance: A tall, handsome man with black hair and black eyes. In Tsukuyomi, he has red hair and yellow eyes. Two black ogre horns grow from his forehead.

Gender: Male Age: 18

Personality: Cool and quiet, but has a fun-loving side. Good at singing. Considerate and observant of his surroundings. A man of few words. Noi's older brother. Member of Black Onyx.

Appearance: White hair and sharp, upturned eyes. Tall. In Tsukuyomi, he has white hair and yellow eyes. Polar bear ears on his head and a single black ogre horn on his forehead.

Gender: Male Age: 16

Personality: Lazy and easily bored. Confident in his looks, he wears cute, gender-neutral outfits in Tsukuyomi. Generally prone to slacking off, but provides plenty of fan service when the mood strikes. Rai's younger brother. Member of Black Onyx.

Speech Style: Casual and feminine (uses "jan," "desho," "dayo").

Appearance: Pink round wolf-mush haircut with purple, drooping eyes. Height is 160cm. In Tsukuyomi, he wears a Wa-Lolita outfit with black twin tails and pink mesh. White tiger-patterned cat ears and tail. Two pink ogre horns on his forehead.