In 2010, Nagasato moved to Turbine Potsdam in Germany, where she won the Bundesliga's leading goal-scorer award.

[7] On 24 May 2017 it was announced that she had signed with the Chicago Red Stars of the National Women's Soccer League (NWSL), she appeared in only 6 games in 2017 due to injury.

[10] On 10 September 2020, Nagasato made history by becoming the first woman to play for Hayabusa Eleven, a men's team in the Kanagawa Prefecture League; she joined on loan until prior to the beginning of the 2021 NWSL season.

[11] On 26 October 2020, newly-formed club Racing Louisville FC announced Nagasato as one of their first signings for the 2021 National Women's Soccer League season.

[17] Since 2016, she wore the number 10 shirt for Japan, after Homare Sawa retired at 2016 AFC Women's Olympic Qualifying Tournament.

[19] Nagasato's brother Genki is a professional footballer, and her younger sister Asano also played for Turbine Potsdam.