So i'm crying

I watched Grave of the Fireflies and literally I was sobbing its so sad.

Whats it about?

I'm probably really bad at describing it so here.

The film opens on September 25, 1945, shortly after the end of World War II, at Sannomiya Station where Seita (清太?), a 14-year-old boy, is seen dying of starvation. Later that night, a janitor digs through his possessions, and finds a candy tin containing ashes and bones, which he throws away into a nearby field. From the tin spring the spirits of Seita and his younger sister Setsuko (節子?), as well as a cloud of fireflies. The spirit of Seita continues to narrate their story, which is, in effect, an extended flashback to Japan in the final months of World War II, during the firebombing of the city of Kobe.
The flashback begins with a fleet of American B-29 Superfortress bombers flying overhead. Setsuko and Seita, the two siblings, are left to secure the house and their belongings, allowing their mother, who suffers from a heart condition, to reach a bomb shelter. They are caught off-guard as the bombers begin to drop hundreds of incendiary bomblets, which start huge fires that quickly destroy their neighbourhood and most of the city. Although they survive unscathed, their mother is caught in the air raid and is horribly burned. She is taken to a makeshift clinic in a school, but dies a short time later. Having nowhere else to go, Setsuko and Seita move in with a distant aunt, who allows them to stay but convinces Seita to sell his mother's kimonos for rice. While living with their relatives, Seita goes out to retrieve leftover supplies he had buried in the ground before the bombing. He gives all of it to his aunt, but hides a small tin of fruit drops, which becomes a recurrent icon throughout the film. Their aunt continues to shelter them, but as their food rations continue to shrink due to the war, she becomes increasingly resentful. She openly remarks on how they do nothing to earn the food she cooks.
Seita and Setsuko finally decide to leave and move into an abandoned bomb shelter. They release fireflies into the shelter for light, but Setsuko is horrified to find that the next day they are all dead. She digs them a grave and buries them all, asking why they have to die, and why her mother had to die. What begins as a new lease on life grows grim as they run out of rice, and Seita is forced to steal from local farmers and loot homes during air raids. When he is caught, he realizes his desperation and takes an increasingly ill Setsuko to a doctor, who informs him that Setsuko is suffering from malnutrition but offers no help. In a panic, Seita withdraws all the money remaining in their mother's bank account, but as he leaves the bank, he becomes distraught when he learns from a nearby crowd that Japan has surrendered unconditionally to the Allied Powers and that his father, a Captain in the Imperial Japanese Navy is probably dead, since nearly all of Japan's navy is now at the bottom of the ocean. He returns to the shelter with large quantities of food, only to find a dying Setsuko hallucinating. Seita hurries to cook, but Setsuko dies shortly thereafter. Seita cremates Setsuko, and puts her ashes in the fruit tin which he carries with his father's photograph, until his own death from malnutrition in Sannomiya Station a few weeks later.
In the movie's final scene, the spirits of Seita and Setsuko are seen healthy, well-dressed and happy as they sit together, surrounded by fireflies, and look down on modern city of Kobe.

If you would want to watch it (I recommend it) here

[You must be registered and logged in to see this link.]

Omg that's so sad.
I'll watch it later