∆lice is a major supporting antagonist in Fundamental Paper Education. She resides in her room, that is located somewhere in Paper School. Δlice is a seemingly normal girl with short brown hair with a pointed ahoge atop her head, a white princess tiara and a black bow on the right side of her head. She sports a collared navy blue long-sleeved shirt with two white buttons, however, her sleeves appears to be damaged by tears. She wears a black necklace with a bronze triangle crossed through by two lines on it. Her attire is finished with a long black skirt with white designs on the end, accompanied by white socks and black shoes. She appears to have a reddish scar on each leg. Δlice is aggressive, willing to kill anyone who enters her room. This is seen in Basics in Behavior when Zip and Oliver disguise her room as an exit door to trick Claire. It is possible that Δlice is more dangerous than the teachers, due to how she's locked away and isolated in her room, with "DON'T ENTER" signs on the door. This could also be backed up by the three teacher's reactions to Claire booking it to Δlice's room, as they seem to show signs of fear. She is seen being passive with Oliver in multiple official artworks, indicating that she might only be nice to those who are close with her

Δlice:still in her room with DON’T ENTER sign