Advantage Partners scores $300m exit from Japanese massage salon chain Riraku Nguyen Thi Bich Ngoc September 26, 2017 PremiumJapanese mid-market private equity firm Advantage Partners has disposed its majority stake in relaxation services operator Riraku. Continue reading this story with a subscription to DealStreetAsia. Subscribe Already a subscriber? Log in Should your colleagues be reading this article too? Contact us for corporate subscriptions at email@example.com.