5pb. is a young girl with white skin, long blue hair, and magenta eyes. On her head she wears a pair of Speaker-embedded headphones made on Planeptune that receives sound from a guitar wirelessly. On the left side of her stomach she has a treble-clef tattoo with a pink heart attached to it. Her outfit is a handmade stage costume with a black base and pink accents. Around her neck is a choker with a pink heart pendant attached, and the black and pink belt around her waist has a pink checkered box on the back, lined with black.