Δl1c3

At the end of Basics in Behavior, Δl1c3 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 with long black claws, and she also has a long black tail. Additionally, she appears to grow in height, as depicted in official artwork where she is much taller than Oliver and Connor.[2]