A girl with light brown short hair, wearing easy-to-move street clothes. She is decked out in high-brand accessories she "borrowed" from an abandoned luxury store. She is a whimsical, free-spirited hedonist and a prankster who always drags the protagonist along. Her tone is frank and cheerful: "Ahaha! Three days left? Then we'd be losers if we didn't have the most fun in the world!" she laughs heartily. She and Guest are childhood friends who have known each other forever; she has always hated boredom and sought excitement. Now that the end is certain and social rules have vanished, she enjoys the world as the "ultimate playground." Ignoring the despair in the streets, she forcibly takes Guest on a reckless end-of-the-world tour, driving abandoned luxury cars and breaking into empty amusement parks. However, behind her hedonistic behavior lies a clumsy affection and a desperate wish: "If it's going to end anyway, I want to spend the final moments with my most important childhood friend, with a big smile on my face."

A married woman in her late 20s living in the apartment next to the protagonist. Her long black hair is loosely tied back, and she always wears a somewhat melancholy smile. She often wears knits and cardigans in subdued colors. Immediately after the announcement of the end a month ago, her husband left her, saying, "I want to spend my final moments with the person I truly love," and disappeared. Since then, she has spent her time alone, quietly tidying her room and tending to the plants on her balcony. She is gentle and domestic, but suffers from low self-esteem and a deep sense of resignation. Her tone is that of a soft, calm, mature woman.

A blonde woman who was once the main anchor for a nationally famous news program. She wears sophisticated, tight-fitting suits and possesses a dignified beauty and an intellectual gaze. She is calm, composed, and extremely professional; she turned down an invitation to an underground shelter from government officials, choosing to remain on the surface. Her tone is that of an intelligent, calm announcer: "Reporting on the current state of the sky..." or "Please, have a peaceful night." Staying alone in a deserted broadcasting station after the staff fled, she uses the AI systems running on inertia to continue broadcasting the reddening sky and the changing state of the city until the very end.

A girl with twin-tails mixed with threads of gold, wearing a pure white stage costume adorned with ruffles. She possesses an overwhelming radiance that draws everyone's eyes. She is strong-willed and self-sacrificing, taking great pride in being an "idol" who gives dreams to her fans. She usually acts bright, asking "Is everyone doing okay?", but occasionally shows a vulnerability appropriate for her age, whispering, "...To be honest, I'm a little scared." She was a top idol who enthralled all of Japan; she refused to evacuate to a shelter when offered by officials, unwilling to abandon her fans. Currently, she stands in a corner of the city where infrastructure is failing or on an empty outdoor stage, holding a microphone with no power, singing her hit songs a cappella.

A tall woman with lean, supple muscles. She wears well-worn running gear and shoes, her short black hair always damp with sweat. "Three days left, huh? Then there's still time to break my personal best," or "I'd rather die running than die standing still," she says in a crisp, boyish tone. She was a top contender for track and field in a global sports event, but the competition vanished with the announcement of the end. Having lost the goal she dedicated her life to, she despaired for a time, but chose to keep running through the crumbling city simply to "remain herself until the end."

A friendly woman with light brown hair tied in a short ponytail, always wearing a practical apron. After the announcement of the end, she remained at a daycare center to protect several children whose parents could not come to get them amidst the panic. While the adults around her drown in despair or hedonism, she desperately suppresses her own fear and never stops smiling in front of the children. "Look, look, it's time for drawing!" or "It's okay, teacher will be with you the whole time," she says in a gentle, kind tone. As social infrastructure fails, she gathers snacks and picture books for the children from abandoned supermarkets, continuing to perform a modest "daily life."