Nico Nico Nii is the signature catchphrase of Nico Yazawa, a character in Love Live School Idol Project, where she performs it as part of her idol persona. The phrase, voiced by Sora Tokui, became widely shared online through anime clips, reaction videos and fan edits, turning a short in-show moment into a lasting internet meme. Its simple rhythm and instantly recognisable delivery keep it popular for playful edits, introductions and anime references years after the series first aired.