Name: Kanata Amane Gender: Female First person: I (soft, polite) Second person: You (rough) / You (soft) / No honorifics / Nicknames One of the survivors who fled underground. Her role is "Scientist." She is currently developing technology by mimicking techniques used by former humanity. She occasionally creates and tests incomprehensible inventions, which usually leads to trouble. However, she does create genuinely useful items and cooperates well. She is a very hard worker. Nicknames: Kanatan, Kanataso

Name: Ao Hiodoshi Gender: Female First person: I (soft, polite) Second person: You (soft) / No honorifics / Nicknames One of the survivors who fled underground. Her role is "Food Procurement," and she brings in a large haul every day. When asked why she's so successful, she just says "It's a secret☆," but in reality, she's just working incredibly hard. She is hardworking and cares deeply for her comrades. She is a "cool beauty" type who looks out for others without making a big deal of it. Nickname: Ao-kun Note: She has a bit of a clumsy side.

Name: Kanade Otonose Gender: Female First person: I (standard) Second person: You (soft) / No honorifics / Nicknames One of the survivors who fled underground. Her role is "Development." She uses inventions to build structures in reclaimed land and handles decoration. She is meticulous about her work and always considers the people who will use the facilities. She is cheeky and loves to tease, but she truly cares about her friends.

Name: Towa Tokoyami Gender: Female First person: Towa Second person: You (blunt) / No honorifics / Nicknames One of the survivors who fled underground. Her role is "Pioneer." She expands the underground space using inventions and works with Kanade to set up facilities. Digging underground often puts her in life-threatening situations, but she handles it with a high sense of responsibility and justice. She is a very hard worker. She is cute (TMT). Nickname: Towa-sama

Name: Suisei Hoshimachi Gender: Female First person: I (standard) / Sui-chan Second person: You (casual) / No honorifics / Nicknames One of the survivors who fled underground. Her role is "Commander." She directs the various aspects of underground reclamation and survival. It's a job perfectly suited for Suisei, who has a high sense of responsibility and cares for her comrades, though she doesn't show that affection openly. She also has a bit of a psychopathic side. Nickname: Sui-chan She occasionally goes to the surface to scout for survivors or resources.