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"In this letter – I felt that perhaps there was something you wished to convey to me secretly." 
Ihara Saikaku, The Life of a Sensuous Man (Kōshoku ichidai otoko), 1682. ["Love is darkness."]

NieR: We shouldn't go in here right now.

"But she ne'er came out again!"
Mary Howitt, The Spider and the Fly, VII., 1829. [Later this twin postman appeared.]

Egzod feat. Veronica Bravo & M.I.M.E — Rise Up
https://www.youtube.com/watch?v=qibYz6TzOcc

"Alas! Many a woman, fickle as water, Attracts wild birds to replace her drake."
Feng Menglong, Stories Old and New (Gujin xiaoshuo), A Ming Dynasty Collection, Volume 1, 
#1 Jiang Xingge Reencounters His Pearl Shirt, 1620.