GG-Duo said:
Can anyone give me a synopsis of this series?
and it's not just violent for the sake of violence, right?
Well, there is reasoning behind the violence, but it is pretty damn violent even when compared to other violent shows. Sex and nudity on occasion. Most of the cast gets replaced every so often as a result; I'd say the show is slightly more violent than Blue Gender. The anime ends before things get as bloody as the manga can be, though.
As the story goes, when certain random people in Japan die, they instead get "copied" into a small room overlooking the Tokyo Tower. No way out. A black ball in the room known only as "Gantz" gives the copies an order: kill a specific alien hiding out in the city. The alien usually looks human, but often turns out to be something much different (and very interested in it's own survival).
Suits that grant superhuman powers (but have limited energy supplies) and a wide assortment of guns are provided. Of course, Gantz doesn't bother what anything does or what exactly the rules of the game are, so half of the people still think they are in some sort of afterlife, and their ignorance tends to make them very
dead.
Just to spice things up, a few minutes after announcing the victim, everybody is teleported onto the streets of Tokyo. Leaving the area of engagement causes the copy's head to explode. There is also a time limit, and while their presence is very real, almost nobody not in the game can see them. (Talking about Gantz outside of the game can have a penalty as well)
If the target is captured or killed, everybody who still has a pulse is teleported back, good as new, assessed a score, and then freed from the game....until the next one begins, at which point they are teleported back and it begins again.
Beyond that, the story is mostly about chick-obsessed student Kei Kurono, who initially starts off as a no-responsibility keep-me-the-hell-out-of-it sort of guy, but gets put through so much shit that it starts to turn him into a confident leader type.
I originally got hooked by watching a few season 1 eps, but after that you really owe it to yourself to read the manga, as Season 1 is basically severely edited in its original release, and Season 2 ends on a shitty filler arc.