Basically this
>>715978529 the only one who survived is girl Kei because she died for a fraction of a second, long enough for Gantz to make a clone, but not long enough to take her real body
>>715979030>>715979265>>715979332>>715979496The mangaka finishes with a half-assed excuse, the aliens are immigrants gaijins that slowly replace the population/take over the world, the aliens that made Gantz started to send signals randomly to other words so the natives could fight them just for pettiness as they got over being expelled/decimated out of their home planet long go, then something about culturally appropriating the part of buddhism that the mangaka loves "doesn't matter who lives or dies, everyone will get recycled in the end" or something then the aliens start to clone dead characters out of nowhere to kill them then say that those clones will reincarnate later on