Nayuta is an utaite and voice actress who occasionally dabbles in songwriting. She's part of the older wave of utaite who started around 2007 and has stuck around—which is actually pretty rare. Her soprano voice is widely praised as angelic, sweet, and genuinely cute.

Her discography includes nine singles, six albums, a collaboration album, and numerous covers. Early on, she went by "Nano Hazuki" and "Sanayu Nanaku" before settling on nayuta and rebranding her website to 7uta.com in 2009.

Her breakthrough came with a cover of "you" from Higurashi that she uploaded to Niconico on June 17, 2007—it racked up 1.77 million views and basically launched her initial following. Though that was huge for her at the time, her biggest hit is actually "Nico Nico Douga Ryuuseigun," uploaded May 16, 2008, which has pulled in over 4.34 million views as of March 2022.

Beyond solo work, she's part of the vocal group La prière alongside Itsuki Natsume and Nakuru Aitsuki.