According to various surveys, between 10 and 20 percent of Japanese men admit to extramarital sex (不倫, furin) with women at about half that number. 
Kwa mujibu wa tafiti anuai, kati ya asilimia 10 na 20 ya wanaume wa kijapani wanakiri kujamiana nje ya ndoa (不倫, furin) na wanawake nusu ya idadi hiyo.