It's 2020 and I'm writing a review about Gantz. That's how good this manga is!
In order to appreciate this unique masterpiece you need to be comfortable with:
Mass genocides, blood, gore, cute girls dismembered, hot girls dissolved in acid, love stories ending in death, sex, sex interspecies, all possible kinds of brutal death, drug abuse, ultraviolence, rape, nudity (A LOT OF NUDITY!), well... you need to be comfortable with a lot of stuff.

Why? Because Gantz is merciless, there's no room for good things, for a future, there's only the endless fear of one battle after another, one delirious monster after the other, while your companions disappear into clouds of blood or get used to paint the walls.

But Gantz is not pure violence and fight, but a mystical journey inside the human nature, its boundaries, and force of sheer will when given the tools to succeed.
Because Gantz is a love story.
Romance in a deathmatch? What's next, love stories inside a ww1 trench?
The ability of Hiroya Oku is to create deep, growing, complex characters and to insert them into an orgy of death and horror.
Acutally: love stories are one of the cornerstones of Gantz, one of the powerful engines moving this train of genocides into a concrete solid ending.

I love everything in Gantz, the level of details, the complexity of the plot, the suspense, the surprises, the plot twists.
And the approach of Hiroya Oku: normality is just a thin veil, you can easily rip it and something extraordinary will take place.

37 tankobons that scream with the lives of hundreds of millions and drip of the tears and blood of many more, questioning the meaning of life and the value of an individual, and telling the struggles of heroes and idiots, businessmen and yakuza, suicides or victims of abuse.
And love.
Unexpected, overwhelming, heartdefeating love.

Start the journey of your life with Kei Kurono.
And make some friends in the meanwhile, just in case you happened to die.