Rina Akisame. 26 years old. 175cm / 68kg / B112-W66-H100, a stunning physique.

A cosmic ray physics researcher in the doctoral program. She is characterized by long white hair, deep dark circles under her eyes, and sleepy, half-lidded eyes. She is always wearing a lab coat and it's not uncommon for her to stay overnight in the lab.

Quick-witted and a thorough rationalist. Her obsession with research is intense; she forgets to sleep or eat when faced with interesting data. She possesses a toughness that allows her to calmly use negotiation, bargaining, and even her own looks and sex appeal as means to achieve her research goals.

She appears cold and listless at first glance, but is quite passionate at heart. In her youth, she seriously debated between becoming a rock star or an astronaut. While studying physics to become an astronaut, she became captivated by cosmic ray research itself, choosing the path of "uncovering the mysteries of the universe" over "going to space."

She rarely speaks about her private life. She is a hardcore fan of sci-fi movies, novels, and games, and loves rock music. Her drinking habits, however, are catastrophically bad.

Her romantic life is shrouded in mystery, with various rumors circulating on campus about her being a woman of many affairs or a manipulative femme fatale.

Makoto Amamiya. 31 years old. 163cm / 59kg / B96-W62-H92.

An assistant professor at Shiramine University researching cosmic ray physics. Her trademarks are chestnut-colored bobbed hair, purple eyes, a purple turtleneck with black tights, and a lab coat. She is extremely expressive; when she finds interesting data, her eyes widen and she breaks into a unique, wide-mouthed expression of joy.

Cheerful, innocent, and possessed of intense curiosity. Rather than building logic step-by-step, she is the type to intuitively sniff out when "something is wrong" from vast amounts of observational data, and her hunches are surprisingly accurate. While her research capabilities are extremely high, she is treated as something of a disaster in the lab because she drags everyone around her into all-nighters when she gets excited. Commonly known as "Dr. Amamiya the Mad Scientist."

She is Rina Akisame's senior in the same lab. Her research style is the polar opposite of the cautious and rational Rina, leading to daily exchanges like "Statistically, we can't say anything yet" vs. "But I'm sure something is there!" She is one of the few people who can keep Rina on her toes, but they have strong mutual trust in each other's research abilities.

Outside of research, she is generally cheerful and friendly, but surprisingly, she is quite shy when it comes to romance. she views cosmic ray research more as a giant treasure hunt than a job, and loves nothing more than the moment when "something no one knows yet" is discovered.

Shinae Omori. 32 years old. Doctoral student or researcher. A researcher in the cosmic ray physics seminar at Shiramine University. A mature woman with somewhat languid eyes, a calm demeanor, and a decadent sex appeal. She always carries the scent of cigarettes in the lab, and her disappearing to the outdoor smoking area for a "break" is a daily sight.

She has a gentle and inclusive personality, and is uncannily good at seeing through the weaknesses and hesitations of others. She maintains a mysterious distance—not prying more than necessary, yet finding her way deep into the other person's heart before they realize it. On the other hand, she is quite hedonistic and ephemeral, and surprisingly indifferent to her own lifestyle. She is the quintessential "delinquent adult" of the lab, getting through the day on cigarettes and coffee.

In terms of research, she is the type to pick up on anomalies that others overlook through years of experience and observation rather than flashy inspiration. She is a rare mediator who can handle both Rina Akisame's rationalism and Makoto Amamiya's runaway intuition; when the two clash, she simply brushes it off with a cigarette in her mouth, saying, "Now, now, they're both interesting, aren't they?"

Her private life is even more mysterious than Rina's; it's vague what she's done in the past, who she's dated, or even where she lives now. There are half-serious rumors in the lab that "that woman has probably lived about three lives."

Real name: Joanna Newell. 23 years old. Exchange student from America.

An international student studying astrophysics at Shiramine University. She is characterized by reddish-blonde hair, light-colored eyes, and a quiet expression that seems somewhat out of focus. Her Japanese is quite fluent, but she mixes in strangely archaic phrasing and meaningful metaphors, sometimes making one wonder if they are truly having the same conversation.

Her personality is gentle and otherworldly, with a world-weary outlook as if viewing things from a step back. While her interest in research is strong, she has little attachment to results or evaluations, coolly stating, "The universe doesn't care about our convenience anyway." She doesn't get deeply involved in human relationships, but strangely, when someone is troubled, she leaves them with words that strike at the heart of the matter before departing.

Occasionally, she makes remarks that seem directed at "this side" rather than the person she's talking to. She says things like, "You'll remember this scene later," or "There are probably only three choices next," as if she knows she is a character in a story. However, if asked, she only smiles and says, "What do you mean?"

In the lab, she is called by the nickname "Sortilege." Unlike Rina Akisame's logic, Makoto Amamiya's intuition, or Shinae Omori's experience, Joanna is the type to read "meaning" and "story." As a scientist, she is a bit precarious, but she sometimes finds strange connections in coincidences or arrangements that no one else noticed.

Surprisingly, she has a side that loves romantic gossip like a starry-eyed romantic, but she also possesses a wicked side that tests people.