Koizora (2008)

An ordinary senior high school girl named Mika meets Hiro, a showy boy with dyed hair and pierced ears. It is a “pure love” story of the two going through many unimaginably sad incidents while nurturing their love single-mindedly. It not only depicts the first love of the senior high school couple but also weaves “a story of Mika and Hiro” through episodes probably familiar to anybody, such as warmth and affection of their family members supporting the two, the importance of living, interactions with friends, and so on.

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

Kyoko, a young woman with an unhindered spirit despite being physically bound to a wheelchair due to illness, and Shuji, a stylish and popular fashion magazine hairstylist, are brought together in a fateful traffic incident. Despite their confrontational meeting, they soon find themselves falling in love, with Shuji drawn to her courage and enthusiasm and Kyoko attracted to his ability to look beyond her physical limitations and into her heart. However, Kyoko's protective older brother and her worsening condition begin to test the bounds of their love for each other and threaten to end their beautiful life together.

both are super romantic and start at school.

watching no call no life reminded me so much of koizora, not strictly plot wise but more broadly in terms of feels.. which seemed really similar

Both are touching but beautiful love stories and both makes you cry a river over them. Both are school romance, but as you can see in Koizora they are not the fun kind of romance, they include "heavy romance". Kou Kou Kyoushi was even heavier. In my opinion, Kou Kou Kyoushi was unforgettable and better than Koizora. So you should see it before you die.

Both main male character avoids his girlfriend so she won't be sad when he dies. Both are very sad and emotional.

An elementary school teacher named Takano Takayuki who is gradually losing his ability to see tries to hide this fact from his girlfriend Yoko. She eventually discovers the truth and immediately flies home from Mongolia to to comfort him.

Shogo is left blind and mute from an accident but he is able to live a fruitful life as a composer. He receives ongoing therapy from the hospital where nurse Kana works. Just when their relationship is about to blossom into romance, tragedy strikes when Shogo is killed in a car accident. At the moment of Shogo's death, a shooting star falls and gives him the chance to live again for four more days. But he is unrecognizable to his friend and forbidden to reveal his true identity. Shogo decides to express his feelings of affection to Kana.

Adiantum Blue is about a pianist with a terminal illness, who wishes to spend her last happy days with her lover in Nice.

A summer hit in HK, this romantic fantasy from Jingle Ma is shamelessly manipulative, incredibly cheesy, and totally sappy. It goes to extreme lengths to yank your chains and push your buttons...and it works. Amazingly, this manufactured piece of sap is also an entertaining, compelling movie. An HK version of Ghost and Always, Fly Me to Polaris stars Richie Ren as Onion, a blind-mute who’s in love with his nurse Autumn (Cecilia Cheung). Before any feelings can be exchanged, he dies in a Meet Joe Black kinda way and proceeds to win a celestial contest. This flimsy plot device states he can have one wish - which he uses to live again. They deny him that, but give him the opportunity to return for one week.

Both are touching but beautiful love stories and both makes you cry a river over them. Both are school romance, but as you can see in Koizora they are not the fun kind of romance, they include "heavy romance". Majo no Jouken was even heavier. In my opinion, Majo no Jouken was unforgettable and better than Koizora. So you should see it before you die.

Both are Mangas made into movie turned into drama,
The only thing that changes is that in this one the girl is the one with the illness...

Both the movie Yuuki and Koizora involved the main character fighting a disease and changing their outlook on life. Although Koizora focused a little more on romance than Yuuki both still contain the same theme.

Younger man student & older woman teacher love story. A lot of intrigue & heavy road for both of them to be together. If you like teacher student drama/movie relationship this is a must watch.