Rin Okumura is a seemingly ordinary boy living at the Southern Cross Boys' Monastery. One day, however, Rin encounters a boy who has been possessed by a demon. Amidst the struggle, he not only awakens latent powers sealed within him, but also learns that he is the son of Satan! No longer able to stay under the protection of the church and with his very existence straddling the line between human and demon, Rin decides to fight against his parentage and joins the True Cross Order as an exorcist. Now, the teen must attend the True Cross Academy and begin special exorcist training alongside his new comrades all while keeping his identity a secret; but can the son of Satan really become a true exorcist?
In a world where supernatural beings known as youmu are hunted by Spirit World Warriors, Akihito lives an eventful life. He’s a half-breed from a human mother and a youmu father, and is immortal - a fact that saves his life on a regular basis, for his bespectacled classmate Mirai can’t seem to stop stabbing him in the chest. She’s a Spirit World Warrior with the power to control her blood, which she manifests into a sword; and with low self esteem about her abilities to hunt youmu, Mirai constantly uses Akihito as target practice. In hopes of being left alone, Akihito must now help Mirai gain confidence to take down sinister youmu.
both animes focus on the trubles of a half demon who sufferes from his demon side, which tends to go berserk.and both protagonists end up being targeted by some kind of organisation.the animation-style is pretty similar, even though Kyoukai no kanata uses newer technic which makes watching it an experience.the quantity of humor is also quite similar, though KnK won't use as much comic relieve. instead the drama and action is focused on some more.
In world where flesh-eating monsters roam the streets, only one organization has the means to save civilization from annihilation: Red Shield, a specially-organized unit designed to fight these monsters, and the only weapon that can destroy them: Saya. Awakened from a 30-year sleep, Saya is thrust into a modern world which she has no memories of, and is troubled by a past filled only with bloodshed and sadness. With the undying love and support of her family and friends, she struggles to gain the strength to move forward and regain the pieces of her shattered memories.
Both of these anime feature monsters/demons which hide under the cover of being human. Only a select few people can actually fight them.
In both of these anime, the protagonist is presented with the choice of either race to fight for. While constantly seen as a threat and "the only hope" at the same time.
If you liked one, check out the other.
Staz isn’t what you’d call a traditional vampire. He’s fascinated by human culture - especially anime, manga and video games - and unlike his brethren, he has no interest in sucking people dry. As a prominent street boss in the demon world, Staz has never desired to go to to the human world. But when a human girl accidentally wanders into his territory, is eaten by a carnivorous plant and comes back as a ghost, Staz makes a life-changing decision: he’ll help resurrect this lovely lady any way he can, even if it means heading to Earth! But the path won’t be easy, what with having no idea how to complete the task and his own laziness standing in the way.
Blood Lad and Blue Exorcist has somewhat the same ring to it. They are quite comedic, deal with demon world. Male protagonists looks kinda similar, but one of them is a demon, while other is vampire-demon and they are strong to begin with, but become even more stronger later on. Atmosphere in both animes is quite similar too, but Blue Exorcist has more school in it.
Some things in life are so bad that you'd like to pretend they're just a dream. Unfortunately for Kazuki, trying to save a strange girl from being brutally killed by monsters (and ending up dying instead) is an unfortunate reality. Out of pity, the girl replaces Kazuki's heart with an alchemy-based artifact known as Kakugane, so that he may live on. With this strange device, Kazuki gains the power of Busou Renkin -- Arms Alchemy; a power that will come in handy when monsters (and worse) begin to plague his town! Kazuki soon meets the girl from his “dream” (named Tokiko) in reality, and she tells Kazuki to get on with his life; but with his sister and friends in danger, that might not be possible. Besides, if Kazuki gives up the chance to show off just how manly he can be, how can he hope to win the heart of the alluring older-sister-like Tokiko?!
The main characters in Busou Renkin and Blue Exorcist are similar: both a bit clueless, both really powerful, and both eager to rush headlong into trouble that they barely understand. Mix in a few laughs and some decent fights, and you've got these shows.
Kimimaro Yoga could use a break. At nineteen years old, he's not only a student at Heisei College of Economics, he's also a part time employee and flat out broke. So when an eerie man offers the boy a special ATM card and an exorbitant amount of cash, Kimimaro gives in to temptation – but there's a catch. In exchange for his good fortune, Kimimaro's very future is put at stake, held as collateral by the Bank of Midas and tied to the amount of yen in his bank account. In addition, he must participate in a special battle every week in the mysterious 'Financial District' – a battle where losing against one's opponent can mean bankruptcy, a fate that carries an unthinkable cost in the normal world...
Both series involve heavy action fighting, and the main characters getting sucked into new worlds and finding out about the respective secret organizations therein, while learning more about their families. Both also have a mysterious bright-haired mentor type character, and similar animation style.