In the sixth month of 736, a Japanese diplomatic mission set out for the kingdom of Silla, on the Korean peninsula. The envoys undertook the mission during a period of strained relations with the country of their destination, met with adverse winds and disease during the voyage, and returned empty-handed. The futile journey proved fruitful in one respect: its literary representation--a collection of 145 Japanese poems and their Sino-Japanese (kanbun)...