As World War II reaches its conclusion in 1945, Japan faces widespread destruction in the form of American bombings, devastating city after city. Hotaru no Haka, also known as Grave of the Fireflies, is the story of Seita and his sister Setsuko, two Japanese children whose lives are ravaged by the brutal war. They have lost their mother, their father, their home, and the prospect of a bright future—all tragic consequences of the war. Now orphaned and homeless, Seita and Setsuko have no choice but to drift across the countryside, beset by starvation and disease. Met with the apathy of adults along the way, they find that desperate circumstances can turn even the kindest of people cruel yet their youthful hope shines brightly in the face of unrelenting hardship, preventing the siblings from swiftly succumbing to an inevitable fate. [Written by MAL Rewrite]

If you're in a big trouble, call the World Welfare Work Association or WWWA. They will send out a team of highly trained capable agents called Trouble Consultants who can solve your problems. But if the team they send you is the Dirty Pair, there will be a lot of collateral damage aside from solving your problems. (Source: AniDB)

The year is 2027 in MegaTokyo, six years before the Knight Sabers will make their debut. Boomers (artificial humans) are still a relatively new advancement, and the implementation and integration of boomers into society is still a bit buggy -- sometimes fatally so. Whenever a boomer incident occurs, though, there is the Advanced Police, a special force trained to deal with boomer crimes. Leon McNichol is a rookie in the AD Police, and is just starting to become exposed to the horrors and tragedies one finds every day in MegaTokyo. He and his veteran partner, Gina Marceau, slowly learn about the ever-fading line that separates man from machine.

The saga of the Knight Sabers continues as the group tries to find out who or what is behind the recent string of robberies, murders, and Boomer malfunctions which are somehow related to the creation of an advanced artificial intelligence. Furthermore, it seems that the Knight Sabers may be breaking up. (Source: ANN)