Convoluted and unconventional definitely gruesome and doesn't pull any punches. It's kind of stylistically gives a post-apocalyptic feel like 1984 and Battle Royale, it's going to depress you. I loved the usual eccentricity of Japanese fiction and there's a touch of dark humor as well. Basically, Zera wants to create a society where there are no adults and he has help from a demonic entity who warns him against an uprising and certain death from 'adults' and 'traitors.' And this fear drives him to be ruthless toward everyone and creating a society aka Lychee Light Club to control other young boys. These boys are not allowed to fornicate, or do anything that goes against Zera's orders. All so they are forced to become Zera's minions, including a gigantic machine named Lychee that is programmed to be human and find girls and be Zera's killing machine. But when one of the boys starts raising his voice against Zera's insane level of cruelty, he starts finding other boys who share his distaste of Zera and his rules. At the heart this film shows how evil people try to control others by instilling fears and taking away their basic human rights like being able to find pleasure, in sex and otherwise. How they're propelled by their own fears and end up becoming heartless. And the other recurring motif is of beauty and ugliness, and how no matter how beautiful someone might be, they will eventually get tarnished if nothing the people who were so taken by their beauty alone will see them as ugly when they find something better. That's the superficial nature of beauty worship.