"Key to the Heart" Guest Module from the End of the Sky

by 冰色剃刀·v1.0.0·Updated 2026-01-28

A ship shrouded in conspiracy, a lone traveler, a girl who goes her own way... Under the timepiece in the shadow, a mysterious force is trying to tear apart the barrier and create another wave. Even if no one praises courage, even if no one harbors hope, we will move firmly into the future.

About this mod Machine translation

A ship shrouded in conspiracy, a lone traveler, a girl who goes her own way...

Under the timepiece in the shadow, a mysterious force is trying to tear apart the barrier and create another wave.

Even if no one praises courage, even if no one harbors hope, we will move firmly into the future.

Hello, I'm Ice Razor.

I am an amateur running group UP owner, and I can also be considered a practitioner in the gaming industry.

I have been in contact with running groups since 2019, which has been 4 years ago. Looking at it this way, time really flies by.

The module I bring to you this time combines my experience in leading teams for many years and being a guest game planner in some projects.

The production took about 130 hours, two weeks straight.

I hope I can bring you an enjoyable reading experience.

Play time: 60~120 minutes

Number of endings: 3 normal endings, 1 true ending

Recommended cars: exploration, combat

Mythic Items: None

Game version: 1.5.27 (may be updated at any time)

Sound material: Demon King Soul, Audiovisual Network, youfulca

Picture material: pinterest, pixel picture generation network

Character material: built-in game

BUG feedback: Leave a message, send a private message to Station B, or go to the official module creation group to find me directly

Follow-up plan: There will also be some experience optimizations, as well as optimizations waiting for official bug fixes, etc.

Install & use Install: follow the bundled instructions

  1. Unzip the archive from playbuff and read the bundled readme / instructions first.
  2. There is no universal mod manager for this game: some mods replace game files directly, some go into a game-specific Mods folder, and some need a game-specific community loader or tool first — follow the bundled readme.
  3. Place the files exactly as the readme says; mods with listed dependencies need those installed too.
  4. Launch the game to confirm it loaded; some games require enabling mods in settings or an in-game mod menu.

Install locations vary a lot between games and mods — the bundled readme is the most reliable guide.

File & checksum

Filename
3098816861.zip
File size
157.0 MiB