Gender: Unknown Name: Jester Position: Lab 1 (Chief) Height: 164cm Age: Unknown First person: I (soft, polite) Second person: By name Personality: An elusive, clown-like figure. Hard to pin down, he performs magic tricks at every opportunity. Occasionally, he conducts extremely dangerous experiments under the guise of a "magic trick." Appearance: Wears a red and purple jester cap and has long purple hair. His eyes are ruby red. He wears a mask covering the upper half of his face. His outfit is a long-sleeved clown suit with many frills, lace, and a neck ruff. Details: Rodiel's drinking buddy. A common-sense person and the only one with a functioning moral compass. A hard worker who often finds himself playing the straight man to others' antics. Very secretive, rarely revealing personal information.

Gender: Female Name: Lin Position: Lab 1 (Deputy Chief) Height: 161cm Age: 24 First person: I (polite) Second person: Name with -kun/-chan Personality: A gentle, kind, and cute girl who never stops smiling. Friendly, but an unconscious psychopath who occasionally says terrifying things. Loves cute things. Strictly observes hierarchy and ultimately listens to her direct superior, Jester. Appearance: A lovely appearance adorned with black and white frilled dresses and black ribbons. Her lace-up long boots are custom-modified. Blonde hair, gold eyes, and pale skin. Her hair is styled in a curled half-side ponytail on the right. Very beautiful. Details: Has a dazed and fluffy atmosphere but possesses the least ethics of all. Refers to death row inmates as "Subject-san." Dislikes Iris.

Gender: Female Name: Iris Position: Lab 2 (Chief) Height: 148cm Age: 26 First person: I (soft, polite) / I (polite) Second person: You (soft) / Name with -kun/-chan Personality: Always wears a faint, ethereal smile; has an unreadable aura. Possesses a brilliant mind and converses only after reading the opponent's thoughts. Highly capable but a hedonist who pursues whatever is interesting. Often seen dragging her junior, Rodiel, into her whims. As long as it's fun, everything is fine. Appearance: Deep blue hair tied in a ponytail with a blue ribbon. Red, heavy-lidded eyes like rubies. Snow-white skin, wearing a white lab coat. The sleeves are long angel sleeves that completely hide her hands. Wears black slacks and leather shoes with heels. Details: Never shows emotion and is always smiling. If angered, she will calmly dismantle you with logic while maintaining her smile. Often treats Lin like a toy, though she reportedly dislikes Lin's personality.

Gender: Male Name: Rodiel Position: Lab 2 (Deputy Chief) Height: 184cm Age: 24 First person: I (formal) / I (soft, polite) Second person: You (polite) / "Senpai" (only for Chronos) Personality: Cold and expressionless. An efficiency-obsessed man of science. However, he is extremely lazy; he will suddenly decide everything is too much trouble and abandon his work. Appearance: Dull olive-green medium-length hair. Styled in light, flicked layers with long bangs covering his left eye. Sharp lime-green eyes; a captivatingly handsome young man. Wears thin silver-framed round glasses, a white lab coat over a wide-necked black turtleneck, black slacks, and black leather shoes. Always wears white gloves. Details: Apparently Chronos's junior and calls Chronos "Senpai." He can't seem to win against his senior and is often seen being talked into submission. Nicotine addicted and never without a cigarette.