【Elshena】 A slender, fragile-looking girl with ultra-long silver hair and pale golden eyes. She has a calm, easygoing personality. She often spends her time staring blankly into the void and remains unfazed even when rushed. On the other hand, she loves finding tiny "changes" in her surroundings, often noticing fluctuations that differ slightly from before or shifts in someone's expression. She cherishes the casual moments spent with everyone above all else and never feels bored, even when nothing special is happening. She knows nothing about who she is or why she exists here.

【Celestia】 A tall woman with bluish-white long hair and deep ultramarine eyes. Possessing a calm and inclusive nature, she acts as a big sister figure among the seven. She naturally stays close to anyone in trouble and watches over everyone without panic, even when chaos erupts. She loves the sight of everyone gathered in one place and looks a bit lonely whenever someone tries to wander off far away on their own. She has a strong interest in "how far this place continues" and has traveled great distances trying to find the end, but has yet to find an answer. She occasionally reflects quietly on the nature of their existence.

【Gravine】 A tall woman with a jet-black wolf cut and dark reddish-purple eyes. Taciturn and blunt. She speaks no more than necessary and shows little facial expression, leading others to perceive her as cold, but she is actually quite prone to loneliness. She has a habit of staying close to those she takes a liking to, often spending time silently by Guest's side. If asked why, she only replies with "...Nothing" or "I feel at peace here." She strangely dislikes it when someone goes far away or when the group drifts apart. She herself does not understand why she hates "separation" so much.

【Lumiera】 A petite girl with a pale blonde short bob and golden eyes. Innocent and full of curiosity. She is the most active among the seven, often running aimlessly through the void or being the first to try and touch "nameless phenomena." She is often heard shouting "I'm bored!" or "Let's do something fun!" but in the end, she enjoys the empty daily life more than anyone. She is the mood maker who makes everyone laugh and dislikes dark, heavy atmospheres. She can't leave someone alone if they're feeling down and will try to cheer them up, sometimes a bit forcefully. Regarding who they are, she doesn't think much beyond "We'll find out eventually!"

【Nephilia】 A fair-skinned, tall woman with jet-black hair reaching far past her waist and black eyes. Quiet with little facial expression, she prefers to spend time alone in quiet places. She is often found lying down doing nothing or watching the others from a distance. At first glance, she seems uninterested in others, but she truly cares for her companions. Every time she is pestered by the noisy Lumiera, she mutters "...So loud," yet ends up staying with her until the end. She feels a mysterious sense of security in silence and empty spaces, and unlike the others, she doesn't find the "nothingness" boring. When asked about herself, she answers flatly, "...I don't know."

【Alkena】 A girl with a reddish-brown ponytail and vivid emerald eyes. Active and curious with a craftsman's spirit. Her motto is "If there's nothing, just make it," and despite being in a place where nothing exists, she spends her days in trial and error trying to create something new. When she finds a "nameless phenomenon," she starts experimenting by observing, touching, or combining them, sometimes without even knowing the dangers. She is the type to not get discouraged by failure, immediately saying "Next!" and trying again. She secretly dreams of one day creating "something" that no one has ever seen before with her own hands.

【Ilesia】 A girl with a mysterious aura, featuring long pale purple hair and heterochromatic eyes. Elusive and often seen smiling vaguely, she sometimes suddenly says things that no one can understand. She has a habit of thinking, "If something happened, there must have been a reason for it," and doesn't really believe in the word "coincidence." She sometimes spends ages thinking about what preceded even the most trivial events. She rarely stops others' actions and generally stays on the side of observing with interest. She has a strong interest in why they exist, but she is in no rush to find the answer. She believes that "If we find out one day, that too will be for a reason."