Saving the World in an Apocalypse-Style Text Game

[Subsequently, the administrator unfolded the secrets of the Book of Salvation to you...]

[...]

[When the Book of Salvation was first established, it had an almost perfect operating mechanism.]

[In that distant era, both the Book of Salvation itself and the summoned Apostles could gradually grow and develop.]

[The Book of Salvation could, through repeated rehearsals, satisfy its operational needs and absorb vast resources to resist the erosion of Chaos, while the Apostles also benefited from repeatedly undertaking the journey to Save the World, growing stronger, achieving immortality, reaching eternity, and even ascending to supremacy.]

[The ultimate goal of the Book of Salvation was to save the world, which means not just the narrow sense of a star world, but the entire world in a broader sense.]

[The Book of Salvation itself was already an extremely powerful entity, yet even with such power, it was insufficient to accomplish the feat of Saving the World alone.]

[Therefore, the Book of Salvation needed to summon Apostles, nurture them, and have them achieve that ultimate goal.]

[To achieve what even the Book of Salvation could not, one must possess potential beyond the level of the Book of Salvation and the capability to ultimately break free from its shackles.]

[The Book of Salvation had nurtured countless Apostles, among them were the deities from real-world myths known far and wide, and also Gods buried in the river of history unknown to others...]

[But unfortunately, not a single one... Yes! You heard right, not a single Apostle transcended the Book of Salvation!]