Crying Out Love, in the Center of the World (2004)

Entrambi i film sono tratti dallo stesso libro giapponese Crying Out Love in the Center of the world

It's based on it, so the plot is really similar and I guess you will like both. If you like them - you should also try the TV series (Sekai no Chuushin de, Ai wo Sakebu), and the K-movie (My girl and I).

"I thought I might be using a lifetime's happiness in a moment. I was that happy, and she was that beautiful." A young boy stands on the red earth of Australia under its blue sky. It is 17-year-old Sakutaro Matsumoto. His time with the girl comes back to him. The colored sand runs through his hands, and a tear appears on his cheek. He wakes up. It's 2004, and he is 34 years old and in Japan. He thinks, "I have been in a world without her for 17 years." Returning home to see his old high school for the last time before it is demolished, Saku confronts anew the loss of the love of his life, Aki, to leukemia 17 years ago. Now a medical researcher at graduate school, he has lived as if half of him died with her since then. Based on the bestselling novel that sold over 3 million copies, the past and present come together in this love story that is both pure and sad.

"I thought I might be using a lifetime's happiness in a moment. I was that happy, and she was that beautiful." A young boy stands on the red earth of Australia under its blue sky. It is 17-year-old Sakutaro Matsumoto. His time with the girl comes back to him. The colored sand runs through his hands, and a tear appears on his cheek. He wakes up. It's 2004, and he is 34 years old and in Japan. He thinks, "I have been in a world without her for 17 years." Returning home to see his old high school for the last time before it is demolished, Saku confronts anew the loss of the love of his life, Aki, to leukemia 17 years ago. Now a medical researcher at graduate school, he has lived as if half of him died with her since then. Based on the bestselling novel that sold over 3 million copies, the past and present come together in this love story that is both pure and sad.

They're both written by the same guy, they both have the same actors and they are both beautifully tragic.

Takabayashi Matsuri learns that she only has 10 years to live due to an incurable disease. She decides to not dwell on her life and not to fall in love, but she meets Manabe Kazuto at a school reunion. ~~ Adapted from the novel "Yomei 10 Nen" by Kosaka Ruka

The plots are quite interrelated and you will surely cry in this one as well.