Swimming star Rikako Ikee's Asian Games campaign got off to a bitter start as her 4x100-meter freestyle relay team finished a distant second behind China on Sunday.
China swept all seven gold medals on offer on the opening day in the pool.
Japan's best results were three silver medals — for Satomi Suzuki in the women's 50-meter breaststroke, Ryosuke Irie in the men's 100-meter backstroke and Ikee's relay at Hangzhou Olympic Sports Centre.