For the battle of original sin, there are two official settings in succession, which seem contradictory but not incompatible. The Hradim Library in the Pen & Fun &www.biquge.info Generation Handbook pointed out that the cause of the original sin war was that after the angels and demons discovered humans, they began to focus on the struggle to win humans, which is not completely contradictory to the design of the 3 generations of teams: the first to discover the world of refuge was the Three Original Sin brothers, they sent Mephisto's son to establish the Three Holy Societies in the Eastern Continent, and the father of mankind, the rebel angel Inaris, personally established the Church of the Holy Light to fight against it, and finally the human hero Udixian, who awakened the power of Nefaling, destroyed both forces, and Heaven also discovered the world of refuge, Udixian sacrificed himself, the memories and powers of the awakened are cleared, and heaven and hell make a deal. In this way, the contradiction between the old and new settings can be answered in this way: the main stage of the old setting is in the Western Continent, while the new setting is the Eastern Continent, so it seems that the two battlefields should be separate and have a certain connection. According to some of the notes of the ancient Nephal Tombs found in the Western Continent in the Three Generations, it seems that there were wars long before the Battle of Original Sin in the Eastern Continent began, such as the accounts of the sunken temple of Elleric and his brothers, as well as various notes from the ruins of Corvers, which mention that the Nephharings "became vulnerable and died young" to their descendants Very troubled, and this is the result of Inaris's adjustment of the frequency of the World Stone, and what happened in the Eastern Continent after that is the same as described in the Book of Kane, Neferin is inferior to the next generation, and finally becomes a mediocre mortal who forgets everything, and in the Western Continent it is different, because according to the ancient notes found in the Western Continent in the game of the three generations, a female demon named Nersa appeared, promising to continue to give the descendants of Nefarin the power they deserve, but in fact it was a conspiracy: to twist it into a half-human, half-demon monster. This Nersa is also supposed to be a Vault dweller who escaped from the Eternal War with Inaris and Lilith, not from Hell after the Vault was built, because the Book of Kane clearly states that it wasn't until a later life that a mage Phisgery inadvertently summoned a demon that burned hell that brought the Three Original Sins to attention to the Vault World. So Nersa, like Lilith, was supposed to be ready to turn Nephaling into her own army, but her actions apparently aroused the displeasure of at least some of Nefaring, led by Ellerric, and the Western Continent War broke out. The information is incomplete, and it can be assumed that Nersa and her army were defeated, and that the Nefal Tomb in Elerrick was almost completely dead. The long years that followed should be similar to what happened in the Eastern Continent, and it is not clear whether the power of the Three Holy Churches and the Holy Light Church spread to the Western Continent, but I think it should not have been transmitted, for the following reasons:

After the end of the War of Original Sin in the Eastern Continent, the Western Continent and the Eastern Continent should have taken completely different paths, although the memory was erased, according to the records of the Book of Kane, the Eastern Continent people blamed the catastrophe on the trauma of religion, and since then they have thrown themselves into the arms of magic, which eventually led to the war of the mage clans. But in the Western Continent, if according to the old setting, the battle of original sin began in Heaven and Hell where humans were found, then, the battle of original sin in Western Continent could only have happened after the death of Udixian, because it was only then that Heaven discovered the refuge world, and it was only discovered by the Three Demon Kings before. Then Heaven and Hell began to establish religions and nurture agents on earth. According to the new version of the setting, such a thing will not happen in the Eastern Continent, because the Eastern Continent people have basically abandoned religion, so if the forces of the Three Holy Churches and the Holy Light Church have not touched the Western Continent, then it can be argued: the Western Continent people have no ill feelings towards religion, so after the end of the Eastern Continent Original Sin War, the conflict between Heaven and Hell to support agents will not begin in the Western Continent. In this way, the old and new sets of settings are strung together.

There are many advantages to stringing it together in this way, and the term "Original Sin War" can be regarded as a variety of erroneous singing after the memory was erased, and Zhang Guanli wore it to the agent dispute in the Western Continent, so there is a statement that the original sin war in the old version of the setting is "still not over yet", so all the seemingly contradictions are almost integrated.

Therefore, the War of Original Sin in the Western Continent Battlefield can be seen as a continuation of the Eastern Continent Battlefield. The angels and demons developed their respective powers in the Western Continent, creating various old religions that were in ruins, until Lakis went west to spread the belief in Sakaram. Among them, the areas of Lu Gain and Antistig should be the places where the beliefs of the Heaven faction are more dominant, so it is basically effortless for Lakis to preach to these two places, and Sakaram and Heaven are both playing with the Holy Light, and it is easier for the doctrine to be integrated and accepted. Although the Yvegalow religion is also influenced by some Heavenly factions, its core is animistic beliefs, so it is incompatible with the statement of the absolute supremacy of the Holy Light in Zakaram, leading to a bloody war. Candras and Wesmartha belong to the sectarian mixed zone, Candras is poor and weak, and Wesmarquis finally falls into the hands of Lakis according to the strategy described in the Book of Tyrell. And then it's almost the plot of a generation of games.

After following this brain supplement, there is a more perfect explanation for the previous doubts about Arkeni: he is the hero of the original sin battle in the Western Continent, and has nothing to do with Udixian. He may not even have the power of Nefaling awakened at all, he is just an ordinary mortal hero, and turning the tide is also the turmoil of the Western Continent battlefield. And the contradiction in the timeline of "Demon Calamity" has also been resolved: the Demon Calamity occurred after the mage clan war, but at the end of the book, it is explained that this is the victory of humans against demons in the early days of the War of Original Sin, and the "War of Original Sin" here actually refers to the battlefield of the Western Continent, because the War of Original Sin in the Western Continent has not ended, so it is completely okay to regard Kakistan 203 as "early".