Aiden has long black hair, accessorized with a fluffy beige ushanka atop her head. She sports a slightly dark blue navy colored army coat with only one button closed, accompanied by a white undershirt, accessorized by a black and orange scarf. She also wears black fingerless gloves. To finish her attire, she dons a belt and jeans. A large scar is visible by her right eye. Additionally, her ushanka features a triangle crossed by two lines, her body type is thick and muscular. While there is little to go off on about her personality, ∆iden appears to be a cold-hearted killer without any care in the world for her victims. Additionally, she may possibly not be the type to express her emotions, hence her official emotion chart. Judging by her weapons, she seems to have experience in killing people or animals alike. Notably, she also seems to not be concerned about others causing harm to themselves, and seems rather interested i

Δlice is a seemingly normal girl with short brown messy hair and tan skin with a pointed ahoge atop her head, a white princess tiara, and a black bow on the left side of her head. She sports a white collared desaturated blue-grey long-sleeved shirt with two white buttons, however, her sleeves appear to be damaged by tears. She wears a black necklace with a bronze transparent triangle crossed through by two lines on it. Her attire is finished with a black tea-length skirt with a white waistband, white semicircle outline designs on the end with dots in between the semicircles, accompanied by white socks and black mary-janes. She appears to have a reddish scar on each leg. At the end of Basics in Behavior, Δlice is seen in her true form. She takes on a demonic appearance, pitch black and silhouetted with bright red scleras and black slit pupils. Six large black spikes poke out from behind her, and three long tendrils occasionally extend from her back. She has long black claws,