A story in "Shokoku Hyaku Monogatari" (One Hundred Tales from Various Provinces), a collection of ghost stories compiled in the Edo period, tells that when a chigo (temple acolyte) received a love letter and threw it away, the feeling of obsession that the writer conveyed in the letter caused an ogre to appear and attack people.
江戸時代の怪談集『諸国百物語』には、ある寺の稚児が恋文を受け取り、それを捨てていたところ、恋文に込められた執念が鬼と化して人を襲ったという話がある.