Also Known As: 1 Litre of Tears, 1 Litro de Lágrimas, 1 リットルの涙, 1리터의 눈물, A Diary with Tears, Ichi Rittoru no Namida, One Litre of Tears, Un litro de Lágrimas, Един литър сълзи, Один литр слёз, Մեկ լիտր արցունք, บันทึกน้ำตาหนึ่งลิตร, 一公升的眼泪, 一公升的眼淚, 一公升眼淚, 一升的眼泪
15-year-old Ikeuchi Aya is an ordinary girl, the daughter of a family who works at a tofu shop, and a soon-to-be high schooler. However, odd things have been happening to Aya lately. She has been falling down often and walks strange. Her mother, Shioka, takes Aya to see the doctor, and he informs Shioka that Aya has spinocerebellar degeneration - a terrible disease where the cerebellum of the brain gradually deteriorates to the point where the victim cannot walk, speak, write, or eat.