1 Litre of Tears (1リットルの涙, Ichi Rittoru no Namida?, lit. "1 Litre no Namida"; also called A Diary with Tears or A Diary of Tears) is a Japanese television drama for Fuji Television about a girl who was diagnosed with an incurable degenerative disease at 15, but was able to continue her life until her death at the age of 25.

The drama is an adaptation of the diary of a Japanese girl named Aya Kitō, who suffered from spinocerebellar ataxia. She began keeping a diary at the suggestion of her doctor, and continued to write until she could no longer hold a pen. The diary, titled 1 Litre no Namida, was published shortly after her death.

Synopsis
This drama is based on the real-life struggles of a 15-year-old girl named Aya who suffered from an incurable disease, but lived life to the fullest until her death at 25. The script is based on the diary Aya kept writing until she could no longer hold a pen. The book that later followed entitled One Litre of Tears has sold over 1.1 million copies in Japan alone. Aya Kitō proved her courage and positive attitude towards an uncertain future when suffering such an illness, spinocerebellar ataxia. The drama spans a decade, during which she graduates from school while her conditions worsen.

The story begins as Aya prepares for the new semester. Despite being happy, she suffers from slight physical problems, which only her mother seems to notice. However, one day, she falls unconsciously on the floor.

After she is sent to the hospital, she is shortly diagnosed with the disease. Despite the fact that she is diagnosed with the terminal illness, she does not lose the will to survive.

She still makes friends with others, including her first love, Yuji. She later develops an interest in Haruto. Although somewhat cold, Haruto was still kind to her. Meanwhile, her health continues to deteriorate.

Knowing that she will not survive for long, she returns a gift to Haruto, who discovers the fact when he reads the love letter that Aya gave him.

In the last episode, she dies peacefully, and her parents mourn her.

Cast
- Erika Sawajiri - Aya Ikeuchi
- Hiroko Yakushimaru - Shioka Ikeuchi (Aya's mother)
- Ryō Nishikido - Haruto Asō (Aya's later love interest and her lover)
- Takanori Jinnai - Mizuo Ikeuchi (Aya's father)
- Riko Narumi - Ako Ikeuchi (Aya's little sister)
- Naohito Fujiki - Hiroshi Mizuno (Doctor)
- Saori Koide - Mari Sugiura (One of Aya's best friends)
- Yuma Sanada - Hiroki Ikeuchi (Aya's little brother)
- Ani Miyoshi - Rika Ikeuchi (Aya's youngest sister)
- Kenichi Matsuyama - Yuji Kawamoto (Aya's first love interest)
- Kana Matsumoto - Saki Matsumura
- Momosuke Mizutani - Kohei Onda
- Ryo Hashidume - Keita Nakahara
- Hiroshi Katsuno - Yoshifumi Asō (Haruto's father)
- Asae Onishi (大西麻恵, Asae Onishi?) - Asumi Oikawa (Aya's roommate when she was in disability school. She has the same disease as Aya)
- Yuuki Sato - Keisuke Asō (Haruto's brother)
- Maya Hamaoka - Kikue Oikawa
- Kazuko Katō (かとうかずこ, Kazuko Katō?) - Madoka Fujimura
- Toshihide Tonesaku - Kiichi Takano (One of the volunteers at the disability who later gets married to the head teacher of the disability school)
- Shigeyuki Satō - Nishino (Home room teacher of Aya when she was still in the normal high school)

Watch Online Video

Episode 01 :	Part1, Part2, Part3, Part4
Episode 02 :	Part1, Part2, Part3, Part4
Episode 03 :	Part1, Part2, Part3, Part4
Episode 04 :	Part1, Part2, Part3, Part4
Episode 05 :	Part1, Part2, Part3, Part4
Episode 06 :	Part1, Part2, Part3, Part4
Episode 07 :	Part1, Part2, Part3, Part4
Episode 08 :	Part1, Part2, Part3, Part4
Episode 09 :	Part1, Part2, Part3, Part4
Episode 10 :	Part1, Part2, Part3, Part4
Episode 11 :	Part1, Part2, Part3, Part4