Hook up apps or sites in Japan, Yokohama area and south

[Petris Sage]

I've used some sites back in my home country to connect with like-minded men for massage trades as well as sharing masturbation fun and other sex, but those apps don't seem to be so successful. Does anyone have any recommendations for apps that aren't cumbersome and where I can find men near Yokohama and south for sex fun and friendship?