Answer
As of my last update in September 2021, Yūki Nagasato plays for the Houston Dash, a professional women's soccer club based in Houston, Texas. The Dash compete in the National Women's Soccer League (NWSL), the top level of women's professional soccer in the United States. Please note that this information could be outdated, so I recommend checking a more up-to-date source for the latest information on Nagasato's current club affiliation.