Nico Nico Nii is the signature catchphrase of Nico Yazawa, a member of the idol group μ's in Love Live School Idol Project, where she performs the line with her trademark hand pose. The phrase became one of the franchise's most recognisable moments as fans clipped, remixed and quoted it across anime communities, reaction videos and short-form edits. Its short, catchy rhythm makes it easy to reuse outside its original scenes, and it remains popular as a shorthand for cute confidence, idol energy and playful self-introduction in anime memes.