Heavenly Curtain

Biodata

Background / History

Luo Shu conceived the Heavenly Curtain after establishing the untraceable Observer Net video platform. He calculated that creating the Curtain would require at least 5,000 Divine Authority Jades; its initial programming was built around an altered Fate/stay night narrative featuring local individuals as replacement Masters. 8 9

The Curtain descended as a radiance that rose beyond the atmosphere and spread over both hemispheres, becoming visible to the entire planet. Its first broadcasts presented text concerning parallel worlds and the Holy Grail War. 16

Functions

Global Projection and Protection

The Heavenly Curtain is a planet-spanning display visible simply by looking into the sky. It can show text, recorded scenes, and ongoing narratives to audiences across nations and worlds. 16 20

• Its initial Earth-side position is outside the atmosphere, 6,947.2 km above the surface. 20
• It is fundamentally illusory, allowing it to endure limited Fourth- and Fifth-Order attacks without being destroyed. 20
• Its existence can be defended or reinforced through Luo Shu’s expenditure of Divine Authority Jades. 20
• The first broadcasts use a modified Fate/stay night scenario to introduce Heroic Spirits, Masters, and parallel-world concepts to the public. 9 16

Audience Access

The Curtain can admit viewers into the Heavenly Curtain World, where they can observe its scenario more directly. 55

• Participants are provided an Exit option. 55
• Viewers may use the optional [Empathy] mode to experience characters’ feelings, including despair, pain, and fear. 55
• People unable to enter can follow broadcasts through Observer Net and interact through barrage comments. 55

Interworld Connection

The Curtain connects Earth to parallel and alternate worlds, exposing their inhabitants to each other’s histories, magic, Heroic Spirits, and crises. 357 369

• Luo Shu intends to expand its reach to one thousand realms and use its growth to advance toward the Prime Deity level. 357
• Its appearance in other worlds can trigger widespread panic, as ancient monsters and powerful factions attempt to test or understand it. 463
• Individuals who play important roles in Curtain narratives can resonate with alternate versions of themselves through dreams, gaining skills, experiences, or magical insight. 294 362

Prophetic Observation

Although many viewers initially treat it as a simultaneous broadcast, its displayed timelines can precede real events. 297 461

• A child version of a Curtain participant performs magic ten minutes before her real-world counterpart, leading observers to identify the projection as prophecy. 461
• Its selected perspectives are considered crucial to resolving major future crises, causing audiences to regard featured figures as protagonists or key causal nodes. 297

Global Impact

The Curtain transforms supernatural knowledge from rumor into a global public reality. Its broadcasts cause people around the world to believe in Heroic Spirits and parallel-world events, generating Divine Authority Jades for Luo Shu. 20 34

• The appearance of Artoria greatly increases public belief and reduces the cost of manifesting her power. 34
• Command Spells, magic, and Heroic Spirits become objects of international competition, with powerful groups sending forces to Japan. 126
• Its influence extends into tourism, food, online culture, and the global economy. 291
• Cults devoted to figures associated with the Curtain, including the Holy King and Luo Hub, emerge in multiple countries. 291
• Becoming a Sky-Curtain Master elevates individuals to the apex of human social standing and political influence. 356

Relationships

• Luo Shu — Creator, operator, and defender; he uses the Curtain’s broadcasts to gather Divine Authority Jades and expand his influence across worlds. 16 20 357
• Observer Net — Luo Shu’s untraceable online video platform; it supports broadcasts, comments, and remote viewing when audiences cannot enter the Curtain World. 8 55
• Global audience — The Curtain’s viewers supply belief, react collectively to its narratives, and increasingly shape their lives around its revelations. 20 291