Hashimoto, 26, will head to Rostov for a medical after FC Tokyo’s J.League game against Urawa Reds on July 18.
A product of the FC Tokyo academy, hard-working midfielder Hashimoto has dreamed of playing in Europe.
“Playing abroad is something I’ve dreamt about since childhood. I’ll work hard so that news of my success reaches Japan,” Hashimoto said.
Hashimoto has won seven caps for Japan and is a defensive midfielder who can also play at the back.
He will join a side sitting in fifth place and in the hunt for European football next season.