1 Litre no Namida

Fifteen-year-old Aya Ikeuchi is an ordinary girl, soon to be high school student and the eldest daughter of a family who works at a tofu shop. As time passes, unusual things start happening to Aya. She begins falling down often and walking strangely. Concerned about her health, Aya's mother Shioka takes her to a doctor; he informs Shioka that Aya has spinocerebellar degeneration, a rare disease where the cerebellum gradually deteriorates to the point where the victim cannot walk, speak, write, or eat. As cruel as the disease is, it does not affect the mind. ==Episodes==

Special episode On April 5, 2007, Fuji Television aired a three-hour special of the series set half a year (2014–2015) after Aya's death, and focuses on Haruto Asō, who has now become a doctor at the same hospital Aya was treated in, and Ako Ikeuchi, Aya's younger sister who is now a nurse in training, while Rika, Aya's youngest sister, has just started high school. Haruto is caring for a 14-year-old female patient, Mizuki, who was bullied in school because of her spinocerebellar degeneration, and rejects therapy due to having lost her will to live. Haruto remembers how Aya fought her illness and lived her life with her disease, and is thus motivated to support Mizuki reappears in the episode using a number of flashbacks from the series and in new scenes. 2027 film A new movie is scheduled to be screened in 2027. Ryo Nishikido reprises his role from the 2005 series. The film, based on the books "1 Litre of Tears: The Diary of Aya, a Girl Fighting a Serious Illness" by Aya Kitō, and "Hurdles of life – "1 Litre of Tears," Notes from Mother" by her mother, Shioka Kitō, continues the story of the series. ==Casts==

Main cast • Erika Sawajiri - Aya Ikeuchi • Ryo Nishikido - Haruto Asou Other cast • Naohito Fujiki - Hiroshi Mizuno (a doctor) • Hiroko Yakushimaru - Ikeuchi Shioka • Takanori Jinnai - Ikeuchi Mizuo • Riko Narumi - Ikeuchi Ako • - Ikeuchi Hiroki • , Yuuki Miyoshi - Ikeuchi Rika (the latter played an older Rika in the last two episodes) • - Ikeuchi Rika in the special episode, in first year of high school. • Saori Koide - Mari Sugiura (One of Aya's best friends) • Kenichi Matsuyama - Yuji Kawamoto (Aya's first love interest and the basketball club leader, who drifts apart from her when she falls ill) • Yuya Endo - Takeda Makoto (Yuji's friend in the basketball club) • - Saki Matsumura • - Kohei Onda • - Keita Nakahara • Hiroshi Katsuno - Yoshifumi Asōu (Haruto's father) • - Asumi Oikawa (Aya's roommate when she was in disability school, who has the same disease as Aya) • - Kikue Oikawa (Asumi's mother) • Yuuki Sato - Keisuke Asōu (Haruto's brother) • - Madoka Fujimura • - Kiichi Takano (One of the volunteers at the disability school, who later marries the head teacher there) • Shigeyuki Satō - Nishino (Aya's homeroom teacher at the normal high school) • Aoi - Tomita (a high school student who likes Haruto & is jealous of Aya) • Anri Okamoto - Nagashima Mizuki (a 14-year-old, and the protagonist in special episodes). ==Alternate versions==

Indonesian Production House SinemArt's drama, titled Buku Harian Nayla (Nayla's Diary). This series aired on RCTI as a special Christmas series in 2006. The scenario was written by Serena Luna, aka Chevyra Edenia. Amrita TV is to dub 1 Litre no Namida, and the Chinese drama Tears of Happiness is based on this drama. A Turkish remake of this drama, titled Bir Litre Gözyaşı, aired on Kanal D in 2018. ==Ratings==

Source: Video Research, Ltd. ==Broadcasts==

Japan • Original run: October 11, 2005 – December 20, 2005 • Network and Timeslot: Fuji TV, Tuesdays at 10:00-11:00pm • Theme songs: "Only Human" by K, and and by Remioromen • OST by Susumu Ueda Hong Kong • Original run: October 15, 2006 – December 31, 2006 • Network and Timeslot: TVB Jade, Sundays at 10:30-11:30pm • Theme song(s): "Stubborn" () by Jason Chan (TV), Xiang Ai Bu Xiang Ai () by Ivana Wong (Movie) Singapore • Original run: Nov 28, 2006 – Jan 2, 2007 • Channel and time slot: E-City, Mondays and Tuesdays, 11:00pm – 12:00am • Theme songs: "Only Human" by K, and and by Remioromen Indonesia • Original run: May 4, 2007 – May 18, 2007 • Network and Timeslot: Indosiar, Mondays to Fridays at 05:00-06:00 pm • Theme songs: "Only Human" by K, and and by Remioromen Taiwan • Original run: July 2, 2007 – July 18, 2007 • Network and Timeslot: Japan Entertainment Television, Mondays to Thursdays at 10:00-11:00pm • Theme songs: "Only Human" by K, and and by Remioromen Malaysia • Original run: August 4, 2007 – October 20, 2007 • Channel and time slot: 8TV, Saturdays, 06:00 pm – 07:00 pm • Theme songs: "Only Human" by K, and and by Remioromen Thailand • Original run: May 5, 2008 - June 9, 2008 • Channel and time slot: Thai Public Broadcasting Service, Mondays & Tuesdays, 08:30 pm – 09:30 pm • Theme songs: "Only Human" by K, and and by Remioromen Philippines • Original run: May 25, 2009 – June 19, 2009 • Channel and time slot: GMA Network, Weekdays, 10:15pm – 10:45pm • Theme songs: "Walang Hanggan" by Wency Cornejo feat. Cookie Chua, "Only Human" by K, and and by Remioromen Vietnam • Original run: September 3, 2012 • Channel and time slot: HTV3, Mondays to Thursday, 21h30 - 22h30 GMT+7 • Theme songs: "Only Human" by K, and and by Remioromen • OST by Susumu Ueda ==Soundtrack==