ef - a tale of memories - 1x08 - Season 1, Episode 8- Followmy.tv

Frustrated that none of her calls made it through to Hiro, Miyako therw her cell phone into a nearby fountain the night he stood her up. Hiro tries to call her repeatedly, but cannot get through due to this. Miyako later calls him and is reassured that Kei lied to her when she said Miyako had already disappeared from Hiro's heart. Chihiro and Renji continue work on the novel, and Chihiro is pushing herself with stress and lack of sleep so as to prolong her memories. She eventually collapses and is unconscious for over thirteen hours. When she finally awakes, Renji witnesses Chihiro's frantic state of not understanding why she has grown older or what happened to her left eye.