Answer: Biwa and Koto
Explanation: The biwa is a Japanese short-necked wooden lute traditionally used in narrative storytelling. The biwa is a plucked string instrument that first gained popularity in China before spreading throughout East Asia, eventually reaching Japan sometime during the Nara period.
The koto is a Japanese plucked half-tube zither instrument, and the national instrument of Japan. It is derived from the Chinese zheng and se, and similar to the Mongolian yatga, the Korean gayageum and ajaeng, the Vietnamese đàn tranh, the Sundanese kacapi and the Kazakhstan jetigen.
