what is the exposition of the story

Hervé Joncour travels the world buying silkworm eggs and eventually travels as far as Japan. He buys eggs from Hara Kei, a French-speaking nobleman. Joncour falls in love with his mistress. During his second visit to Japan, Joncour learns about the aviary of exotic birds that Hara Kei has built; he leaves a glove for Hara Kei's mistress to find in a pile of clothes. Hara Kei's mistress gives him a love note written in Japanese that says, "Come back, or I shall die."