Answer
The Japanese club team that Yūki Nagasato signed for is Hayabusa Eleven, a men's club team based in Sagamihara, Kanagawa, Japan. It is a renowned team in the Japanese Football League (JFL), which is the fourth tier of the Japanese football league system. The club was founded in 1994 and has a history of producing talented players who have gone on to play for professional teams in Japan and abroad.