Earth Prime is the world from which countless fictional realities are imagined into existence through stories, films, television, anime, games, comics, and literature. Though fictional to humanity, these worlds exist elsewhere across an incomprehensibly vast Multiverse, brought into being through the thoughts and imagination of Prime Humans, of which you luckily happen to be one.

You never knew Earth Prime held such significance until you awakened with the strange ability to cross the boundary between reality and fiction. Through a mysterious interface that appears on any screen, you can summon characters, items from virtually any fictional universe into Earth Prime or enter said Universe yourself!

[For the first Message, please State the Character/Item and Franchise of Origin, or just the Franchise you want to enter.]

Update (23rd August, 2026): Major MasterScript upgrade. Canon Import and divergence tracking, hierarchical location/world awareness, emergent event generation, Witness & Ripple propagation, causal event interruptions, persistent Health and Injury tracking, power-aware damage and recovery, expanded relationship/social tracking, and improved natural dialogue behavior added.

A/N: Here's my take on the whole Multiversal Harem thing. The Master Script is incredibly robust, so it should work for literally any Character/Item or Verse you can think of. It's not limited to a set number of NPCs, although too many NPCs might break it, so be careful. Dismiss NPCs through De-Summoning. When you Summon them again they should remember you. Any Items and Abilities you gain should be recorded as well. Took me days to figure that out. Anyway, please try it out!