
Hint① for the question 1
The motifs being played are the violin and the piano. Put “violin” in the first light-blue square, and “piano” in the last light-blue square.
Hint② for the question 1
If you fill in words so they connect like a word-chain game, you’ll find the letters that go in ①–⑥. For ①, flipping “p” upside down gives you “d.”
Hint① for the question 2
The panel labeled “Answer” shows pairs of animals and numbers: fox = 10, skull = 12, hippo = 15, frog = 16. Connect each pair with a straight line.
Hint② for the question 2
Drawing the lines forms a triangle, inside which is written “P & A.” Read “P AND A” together… what does it sound like?
Hint① for the question 3
Look for the plate beneath the “picture of a person made of books.” Color it in so it reads “1566” in digital-style numbers.
Hint② for the question 3
Pay attention to the parts you didn’t color in. Following the arrows, read the letters from the left… what do you get?
Hint① for the question 4
Look for the plate for “Line Scaping.” Pay attention to the letters in the title and the artist’s name.
Hint② for the question 4
Think about alphabetical order, and shift each letter forward or backward by the number shown. For ①, S−1 gives “R.” For ⑥, it’s “M,” but since it’s marked ⑨, it becomes “W.”
Hint① for the question 5
Try writing the symbols reflected in the mirror as letters. The symbols are Heart, Diamond, Club, and Spade.
Hint② for the question 5
Reading the arrow squares vertically will reveal the answer.
Last Hint①
Write your answers in ①–⑤ to complete the final riddle’s sentence. Items ①–③ seem to be located on the 4th floor.
Last Hint②
Fold the question sheet to make a “rainbow.” Connecting the colorful curved lines at the bottom of the sheet properly seems to form a rainbow.
Last Hint③
Find the cylindrical mirror on the 4th floor. Hold your completed “rainbow” up at the spot depicting the Yokohama skyline. Letters should appear within the rainbow reflected in the mirror. Once you have all 5 letters, enter them into the key box.
Horror riddle Hint①
Poking your face out from inside the mask, a spider came down. Navigate the maze by the shortest route from the spider to “GOAL.”
Horror riddle Hint②
Going through the maze, you could read “READ RED FROM LEFT.” Try reading the red letters from the left. Once you have all 7 letters, enter them on the website.


