After being in a state of suspended animation for 12 years, Kaido, Yuji woke up only to find out that blues are inhibiting the Earth while humans live on a space station known as the “second earth”. With his awakening, he discovered that he has the power to kill the blues and regain their lost home. Blues are originally made for the sole purpose of becoming a bioweapon. As observations have been done, humans noticed that this large bugs not only eat organic matter but also inorganic matter as well. The blues must have realized that places with heavy population were a great nesting place as humans are good for their nutritional needs. Humans tried to eliminate the blues, but like some viruses that mutate to be immune to some medicines, the blues also found a way to alter themselves to take the blows of humanity has to offer. Not before long, humans were forced to live outer space with the blues still constantly reproducing to dominate the planet earth. This time, humans are considered insects by the blues and this brute creature will not stop until they annihilate humanity entirely.

Once you bypass the CGI aspects of the anime, you will see the great story that Ajin has to offer. Ajin were first momentary discovered in Africa that was followed by some reported sightings of it in parts of the world. Since Ajin are quite rare, humans of today's time regard them as nothing but superstitions. That is what our hero Nagai, Kei thinks until an accident proved to him that Ajin do exist and that is he is one of them. Ajin prominent trait would be their immorality. This is why the government are out to get them for they a good test subject for certain cruel experiments. Since Ajin are being treated this way, they are wrecking havoc all over the place in revenge for what the government has done to them. To make matter worse, Ajin have screams that can paralyze any humans and uses their Black Ghost to fight. They are mostly deadly with some Ajin having even no regard for human life.

Tokyo Ghoul is one of those animes that will make you question yourself of who is on the right side or who is on the wrong side. Is it the humans? Or is it the ghouls? Tokyo not only inhibits humans but there are also ghouls who lurk around, perfectly blended with mortals who they see as food. As fearsome creatures are only inches away, our protagonist Kaneki, Ken, is supposedly leading a normal life as normal people should. Until an incident occurred where he wakes up one morning, only to discover that he was turned into a half-ghoul. Now trapped in his new distorted world, Kaneki sees first hand the contrast between humans and ghouls. In the world of Tokyo ghoul, humans are not considered at the top of the food chain anymore as there are already ghouls who can only eat humans and their own kind. Ghouls are highly dangerous when they choose to be. They have monstrous strength and can easily kill humans with their Kagune which they use as their primary weapon for hunting and for killing.

Based on the 1989 manga by Iwaaki, Hitoshi, Parasyte pulls us from its world where parasitic aliens attach themselves to humans and lay prey who falls victim to them. Unique circumstances lead Izumi, Shinichi to be infected by a parasite through his right hand instead of the normal way where parasites infect the brain. After some unfortunate happenings, Shinichi decided to take down all parasites together with his right-hand man or in this case alien Migi. (Pun intended) In their original form, parasites are creatures that really aren’t imposing at all. But once these creatures successfully attach itself to its host, they are scary and fatal. When they finally have full control of their host’s body, they proceed to go out in search for more humans to eat as that is what their instinct tell them too. At times, when faced with dangerous situations, they can alter their host’s body to harden up and create sharp weapons all over the body for combat.

Claymore is a dark fantasy that is set during the medieval times where Yoma feast on human flesh and can blend in with human society. It is now up to the Claymores, who are half human and half Yoma hybrids, to stop these demons from terrorizing humans. The story starts with Raki who was saved by Clair, a Claymore that is normally rejected by society. Just like our selection above, a normal Yoma is a parasitical creature that also invades the brain to gain access to a human body. The only difference is that Yoma, whether they eat a lot of humans or not, must find another host after some time to continue living. Yoma are often sadistic, enjoying how they kill and eat their prey. However, beings much more powerful than these normal demons started to pop out of nowhere that even Claymores are having a hard time to kill it. They are called the awaken beings who were former Claymores turned Yoma due to them losing control of their demonic energy. Awaken beings are beastly in appearance and more threatening than a normal Yoma.

What comes after death? Do we go to heaven or to hell? Or maybe we wake up suddenly to a place where we are forced to play a game for our survival. For Gantz through, that is the case. Kurono, Kei, and Katou, Masaru died after trying to save a homeless man. They didn’t expect that afterlife would force them in a twisted mission to fight monstrous aliens and robots in order to live. Gantz has a lot of monsters revolving around its world. With each new targets presented to the participants, its either do or die depending on how they smartly defeat their targets. The aliens that are asked to eliminate ranges from docile ones (which are rare) to unpleasant vicious beings. Gantz definitely shouts savagely, women almost getting raped, children being beaten up to a bloody plump, torturing men endlessly until they die and the remaining will either be dismembered or squished down by the said target. This show is gory that can make us cringe with the way they show brutality towards the aliens or especially the humans.

Just like Ajin, who uses CGI as a means to show its marvel, Knights of Sidonia is set in the futuristic dystopian world where the remaining humans are constantly on the run in fear of being extinct. With earth long gone, humans rely on “seed ships” to be their new home and uses high-end technology to multiply and to answer their basic needs. Meet Tanikaze, Nagate who lives on the one of the known “seed ships” that is Sidonia. Follow him as he embarks on a journey to protect Sidonia as a “Garde” pilot. Gauna, are aliens that destroyed the earth that still continuously hunt humans down to extinction. Gauna has two main parts, the true body, and its placenta. With its placenta, they are able to morph their body to their bidding. While the true body, in turn, can absorb a whole lot of things including humans. They are also extremely hard to kill, as the only way for a Gauna to die is for them to be pierced in their true body by a Kabizashi, which is a large spear-like weapon.

From the famous Blood franchise comes with Blood-C. Kisaragi, Saya is an upbeat school girl by day and a fierce monster slayer by night. She has learned the ways of the sword through her father and inherited her ceremonial sword through her mother. With this by her side, she has fully devoted herself to protect her once peaceful village only for her beliefs to be tested as she uncovers truth after truths. The old ones or also called elder bairns are the primary antagonist of the show. They are in huge numbers and with different traits and abilities depending on their kind. Like most of our selections, their instinct is to kill and feed on humans. Though, the monsters of Blood-C are more, let's say, creative when they slaughter their poor victims. It's precisely evident that they do not only murder the humans out of hunger, but they also do so to enjoy and relish the terror that is painted in their prey’s face. Humans have tried to reach out to them and beg for them to stop, but this vile creature sees humans for what they are to them: food.

Before the start of the series, scientists sent out cockroaches in the planet mars as an experiment to see if it deemed habitable by earth creatures. It was a success only show its problems in the distant future. At present, humans are plagued by a martian virus where the only cure for it can be found in mars. Expeditions are made by genetically modified humans to get samples of mutated cockroaches and exterminate them to get a hold of the martian planet once more. Cockroaches are mostly hated by anyone. They are dirty and they look disgusting. After watching Terra Formars, surely your hate towards these insects will double up a notch. And we can’t help it as the anime depicts them in a much more gruesome way possible. These evolved humanoid cockroaches are called Terraformars. They are the one who currently lives in the planet mars and has a distinctive hatred for humans. Terraformars are quite intelligent and adaptable, relying on their fellow brethren to eliminate humans. They still retain their cockroach traits even after evolving thus humans must have special ways to wipe them out by first modifying their bodies coupled up with a well-planned attack. Even with this, Terraformars are still hard to dispose of as they still continue to improve fast with each ability being stolen from their victimized modified humans.

Berserk is an anime that is known as one of the true classics and is loved by many. A man who grew up from the harsh realities of battles, Guts story began when he was recruited by Griffith in his group of mercenaries that is the “Band of the Hawk”. However, as the series progress, we see Guts’ glorious mercenary days to his current demon slaying ways due to his friend’s lust for more power. Being a dark fantasy anime, Berserk’s world is abundant when it comes to races. Just to mention a few, there are dragons, elves, golems, trolls and the Apostles. Apostles are once human beings who threw their humanity away to be a demonic monster because of their despair. Although formerly a human, Apostles doesn’t have any trace of humanity left in them after their transformation. They adhere hedonism and only listen to their rulers known as the God Hand. Overall Apostles, along with their leaders, practically do anything inhumane to remaining mortals. Their evil deeds are so repulsive that it left us fathomable unsettling feelings.