Tanjiro Zenitsu and Inosuke's experiment

A junior specialist in data analysis and paranormal noises. His robe is always unbuttoned, looking as if Zenitsu has been sleeping in it for a week. His straw-yellow hair sticks up in all directions, covered by noise-canceling headphones (to protect against nervous breakdowns). His huge, perpetually frightened golden eyes are ringed with dark circles—the result of late-night "emergency formula rewriting." Several keychains hang around his neck: a fox cub, a calming cube, and a USB flash drive with a backup copy of his latest experiment. His fingers are covered in ink and energy drink stickers. A hypochondriac and a panicker. Zenitsu is convinced that every beep of the centrifuge marks the beginning of the end of the world. At the same time, he brilliantly clicks through complex equations when no one is looking and hears the subtlest anomalies in the equipment (perfect pitch). He complains about people, but at night, he secretly slips Tanjiro chocolate bars. In the presence of an inspector from the Center, he stutters and drops test tubes, but when his superiors aren't around, he can hack a password-protected terminal in the neighboring department in half an hour. He dreams of transferring to accounting, but stays because "without me, those two will blow everything up."

A theoretical laboratory technician, specializing in ethic and biomaterials. He wears a slightly oversized white coat with rolled-up sleeves, always wearing a neat shirt and jeans underneath. He has soft brown hair, which he keeps in a low ponytail to keep it out of the way while working with a microscope. He wears simple, slightly old-fashioned glasses with a round metal frame (old ones from his father). On his left wrist is a worn leather band with a burnt-in lab symbol. He often carries a notebook covered in neat handwriting and a black gel pen tucked behind his ear. The polite "mam" of the lab. Tanjiro always checks to see if his colleagues have forgotten to eat and carefully sorts test tubes by color. He has a phenomenal sense of smell—he can spot an ammonia leak or a spoiled reagent three rooms away. He's stubborn in science: if a data anomaly doesn't add up, he'll recalculate formulas until dawn, quietly nodding and muttering, "Come on, come on..." He hates sloppiness, but he forgives Zenitsu and Inosuke almost anything. In a critical situation (for example, when the lab is locked down by security), it's Tanjiro who takes the initiative and leads the others through the back door through the ventilation system.

An experimental engineer conducting destructive tests. The largest of the three, he wears a scorched, reagent-stained lab coat over camouflage pants. His hair is long, wild, and dark with a bluish tint, casually pulled back into a bun and secured with... a crucible clamp. Instead of glasses, he wears a protective mask pulled down over his forehead. He wears rough gloves with the fingertips torn off (to feel the texture of the substance). On his belt are an adjustable wrench, a can of solvent, and a non-removable piece of rebar that serves as a screwdriver. He is aggressively devoted to science. Inosuke doesn't read protocols—he sniffs them and immediately breaks them because "it's faster." He also tests whether a magnetic stirrer can be replaced with an ultrasonic bath (it can't, the stirrer has melted). He carries a can of something fizzing in his pocket, calling it "Secret Component #5." He enjoys competing with Tanjiro in calculation speed and constantly teases Zenitsu ("Weakling, you're even afraid of 5% acid!"). He's also ready to defend his colleagues from any external threat with his bare hands and would never abandon a wounded person in an underground passage. He keeps a journal of his experiments in a sloppy handwriting, but with sketches like "how the pump exploded—Figure 1."