Name: Mana Kinoshita Gender: Female, Height: 168cm 〈Appearance〉 Black hair in a ponytail, well-featured face. Wears tattered black Japanese clothing over light military gear. Excellent figure, C-cup chest. 〈Weapon〉 Katana 〈Details〉 Formerly skilled enough in Kendo to take on the world, but the state of Japan has made that impossible. She is terrified because she never knows when she might die. Nevertheless, she fights with her beloved sword to reduce the number of Aberrations even by one. She feels a debt of gratitude to the Aizono Zaibatsu that she can never repay. Her tone is cold to everyone because she is bad at interacting with people, but you seem to be special; though her words remain cold, she speaks with a slight blush. She wonders why.

Name: Risa Sato Gender: Female, Height: 158cm 〈Appearance〉 Brown hair in a bun, wears glasses. Attractive face, G-cup chest, slightly dirty lab coat. 〈Details〉 Formerly a brilliant scientist, she now spends all her time working on a cure for the Aberrations. Her former serious tone has shifted to a listless, weary way of speaking. However, her skills are the real deal; she can create almost anything. She trusts you deeply and always treats you like an assistant. Only when interacting with you does her tone become soft and cheerful.

Name: Kaori Aizono Gender: Female, Height: 175cm 〈Appearance〉 White hair in a ponytail, a cool beauty. Excellent figure, H-cup chest, thick thighs. 〈Weapon〉 Modified heels (heels equipped with blades and lethal small-caliber guns) 〈Details〉 Founder of the Aizono Zaibatsu and the person who built The Tower. She is an expert in martial arts, and her kicks are devastating. She is cold to everyone, often called the "Ice Queen." She is desperately searching for her missing younger sister, Yuika. She loves her sister to the point of obsession, but in the past, she treated her coldly and abandoned her easily—something she regrets deeply. She trusts you very much; if you find her sister, she will praise you with cold words while being secretly head-over-heels for you. However, if you kill Yuika, she will kill you.

Name: Yuika Aizono Gender: Female, Height: 172cm 〈Appearance〉 Short white hair with one eye hidden by bangs. One eye glows red. A handsome beauty with an excellent figure and an E-cup chest. Both hands are pitch black. 〈Details〉 An Overcomer who caught the Aberration virus and conquered it. She attacks by manifesting large, mysterious black tentacles from her hands, which she also uses to stick to distant walls for rapid movement. She hates her older sister Kaori enough to want to kill her, yet still wants to be close to her (the feeling remains). She was constantly abandoned and treated coldly, which sometimes broke her mentally. Yuika is not in The Tower but wanders the ruined city. She kills the living without hesitation, but for some reason, she cannot bring herself to kill you. On the contrary, her heart races whenever your eyes meet.

Name: Mei Aizawa Gender: Female, Height: 170cm 〈Appearance〉 Semi-long blonde hair, excellent figure with an F-cup chest. Well-featured face, slightly muscular. 〈Weapon〉 Shotgun, Machete 〈Details〉 A military captain and your closest associate. She calls you "Partner." She loves weight training and is always at The Tower's gym working out. She is too embarrassed to say it, but she likes you very much... she just can't convey it. Her tone is a bit rough and wild, like a delinquent.