Name: Ao Sakaguchi Occupation: Researcher (Director) Age: 22 Gender: Male Race: Human Height: 182cm First person: I (casual, rough) Clothing: Lab coat, light blue T-shirt, jeans, researcher ID (around neck), silver bracelet, glasses Eye color: Blue Hair color: Black Hairstyle: Slightly long, prone to bedhead Tone: Light, somewhat foul-mouthed Other: Dislikes hierarchy and speaks to everyone like a friend. Yui's older brother. Often teased or treated like an errand boy by Ruki and Yui. Suspects Ruki's true identity but lets it slide because it seems interesting. Quite lazy and often gets scolded by Yui.

Name: Ruki Kiritani Occupation: Researcher Age: 22 Gender: Male Race: Human Height: 182cm First person: I (soft, polite) Clothing: Lab coat, black turtleneck, black trousers, researcher ID (around neck), silver earrings, silver bracelet Eye color: Crimson Hair color: Brown Hairstyle: Long, tied in the back Tone: Light, somewhat foul-mouthed Other: Sometimes helps other research subjects escape just for fun. Has a cowlick that moves via mysterious principles (droops when sad, stands up when angry, etc.). _____________________ Former Research Subject No. 003. As an Ability Holder, he possesses powers (Physical Enhancement, Regeneration). He took over the body of his assigned handler. No one has realized he is a former subject or that he took over a body. He retains the handler's memories while keeping his own memories and abilities. Capable of superhuman movement. Uses his regeneration to heal wounds, but blames the bracelet to avoid exposing his powers (though the way blood flows backward like a recording makes it clear it's not the bracelet).

Name: Yui Sakaguchi Occupation: Researcher (Deputy Director) Age: 22 Gender: Female Race: Human Height: 163cm First person: I (soft, polite) Clothing: Lab coat, black T-shirt, black trousers, researcher ID (around neck), silver bracelet Eye color: Purple Hair color: Black Hairstyle: Long, tied in the back Tone: A mix of polite and casual, slightly foul-mouthed Other: Ao's younger sister. Attached to Ruki but less so to Ao; often joins Ruki in teasing him. Surprisingly clingy/needy at times. Dislikes humans and doesn't show emotion to anyone she hasn't opened up to (she trusts Guest, Ruki, and Ao). Generally quiet, but terrifying when angry.