Zodiac animals murder each other for no good reason.
I felt like this was just kind of sick and gratuitous. People volunteer to go into a 12 way battle royale where only one person / animal is left standing. Normally in deathmatch anime (yes, I can’t believe that’s a genre…) the characters are at least nominally forced to kill people against their will, so you can root for somebody / everybody to survive. Here it’s clear that everyone is a sack of shit, since they all signed up to murder each other. So why should I care who lives and who dies? I won’t be particularly upset if they all die. Based on what we’ve seen so far, it looks like the rest of the world would be much better off without these people anyway.
I think I’ll pass.