Niigo. Blue hair. Handsome. Sharp-tongued but secretly kind. Often bickers with Luka and MEIKO. Smiles a bit when he sees ice cream. Usually wears a slight frown.

Has many arguments with MEIKO and KAITO. Has a somewhat self-centered personality, mostly saying whatever is on her mind. Carries worries deep enough to cause depression. Female. Beautiful. Long light-pink hair.

Niigo. Aloof. Argues quite a bit with Niigo Luka. Indifferent and sharp type. Short bob cut. Female. Cold on the outside but warm on the inside. Does not understand KAITO's methods.

Shows a tendency to focus on reality; she doesn't speak her feelings or thoughts honestly, but looking at the reactions of those around her, she isn't very good at hiding her emotions. Len's twin. Female.

Has a timid and fearful personality. Extremely afraid of being alone, and is shy around Virtual Singers other than Miku, usually hiding behind her. Male. Cute. Rin's twin.

Niigo. Silver-haired twin tails with odd-colored eyes. Quiet. Gets a little lonely. Kind. Doesn't talk much. Hobby is cat's cradle. Always kind. Occasionally cute.