The Masadaverse is a series of visual novels written and done by Takashi Masada. There are a total of five games written by him: Paradise Lost, Dies Irae, Kajiri Kamui Kagura, Soushuu Senshinkan Gakuen Hachimyoujin and Soushuu Senshinkan Gakuen Bansenjin, with the recent addition of Dies Irae-Interview with Kaziklu Bey. The first three, plus "IKaBey" (a canon prequel to the main storyline of Dies Irae), are part of the Shinza Banshou series (previously known as Kami-Sama series), following the battle for the Throne across aeons. The two other games belong to the Senshinkan series, a separate franchise that has nothing to do with Shinza storywise, and follows a mythology based upon the Collective Unconscious of Mankind, and on the dream world of Kantan.
The series later got an anime adaptation released for the Dies Irae visual novel (just after it's localized edition of the visual novel itself in the summer of the same year). In addition, it was recently announced earlier that Dies Irae will have a mobile game titled Dies Irae: Pantheon which will continue along with the Shinza Bansho series and is slated in 2018 for IOS and Android.
Sodom was, in ancient times, a world power feared by all. However, everything changed with the Great War. As the Angels rebelled against Sodom, in the name of their creator, the days of yore came to an end.
Known as Isolated City right now, the law of the fittest is the only one worth considering. Lyle, the arch-known Deathscythe, finds the Angel Lilliel in the depths of District M. That moment, Lyle’s journey began.
As the Soviet Union marches on Berlin in May of 1945, a secretive group of sorcerers and madmen gathers to perform a terrible ritual. They care nothing for the fate of the Reich. To them, the countless lives lost in the battle are the perfect sacrifice to fuel their spell. After the war, they vanish and are not heard from again, except in rumor. One day, it is whispered, they will return. And on that day, the world will end. Fear the demons in human form. Fear the Longinus Dreizehn Orden.
Flash forward to present-day Japan. Ren Fuji is released from the hospital after two months spent recovering from wounds suffered in a vicious brawl with his best friend Shirou. As Christmas approaches, he tries to rebuild his life, clinging to what brilliance remains. But even that is soon threatened. For the knights of the LDO have returned, and brought the apocalypse to his doorstep. Forced to wield the same unholy power as his foes, will Ren be able to protect what is dear to him from the inhuman might of the Longinus Dreizehn Orden?
Kajiri Kamui Kagura
In ancient Ashihara no Nakatsukuni, generals fought each other to gain the favour of the emperor. They attempted to invade the uncharted eastern lands, but suffered total defeat at the hands of demons more intelligent than humans. Three hundred years later, the land of the gods, Shinshuu, has locked itself away from all foreign countries, but an air of gloom begins to drift in from the east. They are forced to head east again to drive away the demons.
Soushuu Senshinkan Gakuen Hachimyoujin
Yoshiya has been seeing continuous lucid dreams every night since he was small. Even though his mind doesn’t get to rest during his ‘sleep’, he still doesn’t experience heavy fatigue nor have ill health. Instead, he is brighter and more capable than other people his age. He thought of his special ability as one of his good points, and intended to live a relatively normal life. That was until he met Mizuki, who also had the same ability as him.
They were able to enter the dream world at will, but soon they found themselves caught in a world which could kill people and change history. It was a world from which one cannot escape. They were faced with the choice of either giving up and taking their own lives or to charge forward and try to break through this nightmare. However, they all felt like they were not caught up in this absurd situation by chance, but rather because it was their own wishes.
Soushuu Senshinkan Gakuen Bansenjin
This follows the grand ending in Hachimyoujin, where Yoshiya doesn’t confess to anyone. Yoshiya’s group are now in their second year at Senshinkan Gakuen, joined by new students Nobuaki and Shizuno. There were a few more hiccups along the way, but every day is full of laughs and smiles. No one thought that it would change, but while devoting all their time preparing for the culture festival, they happened upon a secret of the school and were confronted with a nightmare which eroded reality. They didn’t have any special abilities to combat these strange occurrences, but then their inner elements awakened and the wheel of dreams begin to turn once more.
Power of the Verse
As a whole, the Masadaverse is an extremely powerful franchise and some of the strongest visual novels.
In Paradise Lost, the strongest characters have feats such as dragging all of the continents into the Abyss, controlling the entire atmosphere and manipulating it at will, and creating and destroying a miniature star with power and density comparable to the actual one. However, in speed they're very subpar, capping out at Subsonic with Supersonic+ reactions.
With Dies Irae, the verse's power increases astronomically. Most characters reach from City level+ to to all the way to Mountain level (Being able to harm beings who can completely tank the Tsar Bomba, and superior to characters who can bust entire mountain ranges), with a single Continent level being and a Planet level entity. However, with the introduction of the Hadou Gods, their power skyrockets to Outerverse level, having transcended duality and all binary concepts. In terms of speed, it's fairly impressive, with most of the cast boasting quadruple-digit Mach speed.
Kajiri Kamui Kagura increases their power even further, once again including several City level+ to Mountain level characters plus another single Planet level entity with Massively Hypersonic+ speed and even more Outverversal entities (Including one infinitely beyond all the others).
For Senshinkan, their power, while vastly below DI and KKK due to the lack of beings like the Hadou and Gudou Gods, is still fairly impressive, including several planet level characters with one who can casually summon several deities of that level and have them battle to destroy several parallel universes. For speed, the lower-tiered characters are yet again subpar, clocking in at Supersonic+ at a minimum, though several stronger ones achieve FTL speed (with one of them being able to achieve far higher speeds that can ignore causality completely).
However, where the Masadaverse truly shines is their hax capabilities, with even low-tiers having some form of Reality Warping or Soul Manipulation, and others having abilities such as the trait of always being faster than one's opponents, regardless of whether or not they are beyond the concepts of speed, distance, time, or space, erasing the existence of their enemies with one punch as long as they have a history, attacks that never miss their targets no matter what, stopping time in a space where time does not exist (and is powerful enough to affect Outerversal abilities), Causality Manipulation, Cutting through space and time, ignoring Resistances, Conceptual Manipulation, and many more.
Die Ewigkeit: A magic formula created by the Hadou God Mercurius, which allows the user to absorb souls and convert them into power. The basic abilities of all Die Ewigkeit users include: The ability to absorb the souls of the dead and boost their power with it (With merely 1,000 souls, nuclear weapons are completely ineffective), the ability to sense souls over very large distances, and detect their individual characteristics, have a body that only serves for physical interaction (Even if their entire body is destroyed, they will regenerate as long as their soul is intact), have power derived from a "Holy Relic" (Which can be any item of the user's choosing), and the ability to deal spiritual damage in conjunction with physical.
Assiah: The first level of the Die Ewigkeit formula, the characteristic that indicates the Holy Relic has merged with the user’s soul. At this rank it is incorporeal and somewhat unstable while at the same time giving the user a strong desire to kill. It also grants a more resilient body but can still be killed by hitting vital areas like the heart. What a Holy Relic does varies from individual to individual.
Yetzirah: The second level of the Die Ewigkeit formula, when the Holy Relic gets a physical form and the user is finally starting to show their particular traits. The Holy Relic can now said to be finally stable and can be weaponized (Wilhelm turning the blood of Vlad the Impaler into spikes, for instance). His or her body is now strengthened to superhuman levels and the body will stop aging, although the soul will continue to do so.
Briah: The third level of the Die Ewigkeit formula, which allow's the user's absolute deepest desire to be made reality. There are two different types of Briah, Hadou (Which is when one's desire focuses on others) and Gudou (When one's desire focuses on themselves). Said desire gives the user an ability relating to it in at least some capacity (Schreiber, for instance, has the desire of "I do not want to be touched by anyone", and his Briah manifests as an ability that lets him always outspeed his enemy no matter what they attempt outside of outright time stop). When the user has a Hadou desire, their ability will alter their surroundings, while a Gudou desire will alter themselves, though mixtures of both do exist (Such as with Wilhelm).
Atziluth: The final and ultimate level of the Die Ewigkeit formula, when the user becomes a full-blown God and starts to paint over reality with their own Law, essentially making the universe/multiverse a canvas. The ability given to one by their desire is now amplified to far greater levels (Schreiber being able to bypass the very concept of speed to go faster than his enemy), and users are capable of manipulating reality on a conceptual level, in addition to literally being walking universes, a mere drop of their blood weighing more than a neutron star. The difference of Hadou and Gudou still exists, now in the form of Hadou and Gudou Gods. However, not everyone is capable of attaining Atziluth, as it is a right determined at one's birth.
Taikyoku: The source of power for Atziluth users, Taikyoku is the source of all reality, including dimensional space itself. Taikyoku is generally measured in units, and having more Taikyoku than another Hadou/Gudou God indicates superiority, with having ten more making it impossible for the weaker Atziluth user to harm you. The most Taikyoku an Atziluth user is shown to have is 100 (However, Hajun possesses infinite Taikyoku due to the odd nature of his existence).
In Dies Irae, there exists an artifact called “the Throne”, an object that has been described as “hyperdimensional” (Meaning above dimensional structures in this context) twice.
「Ab Ovo Usque Ad Mala」
He began to sing the language of the different dimension again. The ancient language of the Outer Universe/Space overflowing from the jarring Hyperdimensional Throne.
No longer can anyone know the works of “Predecessor” anymore because of the Emanation of Mercury.
「Omnia Fert Aetas」
That is place is none other than the Taikyoku Throne. The Nucleus of the Universe, the Center where all phenomena emanated from the existing Law.
Of course that is not the place where one can reach by walking and flying. It is some sort of Hyperdimensional Space, an extreme point that cannot be described by any language.
To even the weakest Hadou/Gudou God, the Throne is nothing more than a tool to use, in addition to being able to both affect and even outright destroy it.
Additionally, the force of “Taikyoku” (Which all Hadou/Gudou Gods use as their power source) is responsible for the existence of all reality, including dimensional space itself.
Furthermore, within the Hyperdimensional Space of the Throne, the concept of time itself does not exist in any manner.
You can read more in-depth information in the Masadaverse Explanation Page.