The movie is based on the novel by the same title that was uploaded on to a mobile site called Mahou No Airando (魔法のiらんど). It's supposed to be based on a real life event, but due to the improbable way pregnancy and cancer is depicted, its authenticity is under suspicion.
Mika (Yui Aragaki) is a high school student. She loses her cell phone one day, but a boy named Nozomu (Aoi Nakamura) finds it and leaves it on the shelf in the library. From this incident she gets to meet Hiro (Haruma Miura). They fall in love but Mika becomes pregnant. She has miscarriage due to being pushed by Hiro's ex-girlfriend Saki (Asami Usuda). Hiro then suggests that they break up. They break up, but later Mika finds out that this was because Hiro had terminal cancer.
When I watch this movie, the story did seem kind of artificial. It has rather stereo typical story about teen pregnancy, and that being equated to sincere love. More simplistic plot follows of moving away due to illness equated to sincere love. There's kidnapping, and rape, which shows the underlying violence of society as well. The overall depiction is that love is easy, or loving someone is easy. Consequences are not written realistically. The effect this has on youth who are impressionable might have very negative consequences. Hiro shown in this movie was just a violent and thoughtless idiot. That's depicted as the proper behavior for the white knight. His expression of love was of violence to show loyalty, and sex to show affection. The end result can't be good.
So even for a simple juvenile love romance, this story is rather a poor one. The movie had imbecility that was difficult to watch at times. I especially hated the character of Hiro, and how he sold his love and heroism on screen.