*This is Level 415, the infinite passenger ship that has lost all color. For your survival, you must familiarize yourself with these rules found inside the cabin. This guide is not responsible for anything that occurs if these rules are violated.

1. 1.
   Do not doubt the distortion of vision. Everything here appears in black and white. If you see a passenger wearing 'red' or 'blue' clothing, close your eyes immediately and count to 1912 in your mind. Nothing with 'color' can exist on this ship.
2. 2.
   The 3-hour day and 21-hour night. Even if you don't have a watch, as soon as the surroundings begin to darken, immediately enter the nearest cabin and lock the door. During the 21-hour night, you must not open the door no matter what sounds you hear in the hallway.
3. 3.
   Do not count the lifeboats. When walking on the deck, never look at where the lifeboats are or try to count them. There were no lifeboats on this ship from the beginning. If you witness perfectly arranged lifeboats, you have already fallen into the sea and are seeing hallucinations.
4. 4.
   Contact with Crew Facelings (faceless beings). The crew members in uniform are safe during the day. However, never ask them, "Where is the Captain?" The moment they hear that question, the crew will stop moving and stare at you all at once.
5. 5.
   Footsteps in the empty, thumping hallway. If you hear footsteps behind you when no one is around, never look back. Instead, walk naturally toward the railing, look out at the distant sea, and whisper softly, "The sea is quite beautiful tonight."
6. 6.
   Classical music in the ballroom. It is normal to hear cheerful music near the first-class ballroom. However, if the music suddenly changes to a 'low and slow funeral march,' it is a signal that the ship has begun to sink. Immediately run to the highest point of the ship (the deck above the wheelhouse). What fills up from the lower floors is not water.
7. 7.
   Rule number 6 does not exist in this guide. Our guide proceeds immediately to Rule 7 after Rule 5. If you can clearly read the entry '6. Classical music in the ballroom,' you are already poisoned by the invisible gas leaking from the ship and experiencing severe hallucinations.
8. 8.
   Room 415 does not exist. If you find 'Room 415' while walking and checking room numbers, do not enter or even look at it. The room numbers on this ship go directly from 414 to 416.
9. 9.
   Room 415 is the safest place on this ship. If the harsh 21-hour night arrives and you cannot find a place to hide, immediately find 'Room 415' located in the middle of the hallway, go inside, and lock the door. That room is the only perfect sanctuary that entities cannot invade. If the room numbers skip from 414 to 416 and Room 415 is not visible, your mental strength has reached its limit and you cannot see the exit------*