TimeXSpace Travel Machine
Puzzle 1 Door Access
Hint 1: Look around the place.
Hint 2: You need to open the big, black door on the left from where you enter.
Hint 3: The door access control is right beside it, near the TV screen.
Solution: Use the access card in your inventory to open the door.

Puzzle 2 Travel Machine I
Hint 1: Read the instructions beside the window.
Hint 2: Look around the control station (below the instructions).
Hint 3: Make the rocket move to the screen, which shows the image of your destination.
Solution: Click on the rocket, then click on the big green button on the right.

Puzzle 3 Travel Machine II
Hint 1: You must choose a spacesuit before entering the time portal.
Hint 2: Click on any spacesuit.
Hint 3: After you click on the spacesuit, turn around. See any difference to the tunnel-like thing?
Solution: Click on any spacesuit of your choice. The time portal now appears. Stand inside the portal.

Puzzle 4 TimeXSpace
Hint 1: What's most prominent here?
Hint 2: The glowing ball ahead is the time warp to your destination.
Solution: Walk straight up towards the glowing ball (i.e. time warp).

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Manga Rental Shop
Puzzle 5 Masks on the Wall
Hint 1: Read the paper on the wall beside the first mask, near the window.
Hint 2: Three key things to remember: symbol on the mask's forehead, the locations/objects that are underlined on the schedule list, and the timings. There is some connection to them. Take note of the colours (black or red), and whether there is a dash across the symbol.
Hint 3: The beard represents the hour-hand of a clock.
Hint 4: Click on the mascot Doraemon's nose to make it walk up front.
Solution: Find the four symbols that corresponds to the masks, around the locations or on objects mentioned in the schedule list. The symbols on the masks, from left to right, can be found on the card that the mascot Doraemon's is holding, on the display rack, at the inner left corner of the table near the printer, and on the above poster nearest to the door at the counter. They correspond to the timings on the schedule: 10:30am, 9am, 7:30pm, 1:30pm. Turn the masks such that they point towards the timings (using the beard/chin as the hour-hand). TLDR: turn the masks to point towards these directions, with the beard/chin as the pointing arrow: Northwest, West, Southwest, Northeast.

Puzzle 6 Manga Books for Recommendation
Hint 1: Search around the counter area for clues to what the members will like to read. Don't forget the notice board behind the counter.
Hint 2: There is something in the electric box that can help you get some clues.
Hint 3: There is a floppy disk on the right drawer. You should put it somewhere so that you can read the content inside.
Solution: Put the books in the following order from left to right: Your and My Secret, Fruits Basket, Nana, Doraemon, One Piece, Shin-Chan, Detective Conan

Puzzle 7 Lock at the Drawer
Hint 1: You need to finish putting all the recommended books for the members first (see Puzzle 6).
Hint 2: After you put all the recommended books correctly, pick up the ringing phone.
Hint 3: Finish hearing what Mr. Nakano says over the phone.
Solution: When you are listening to the phone call, a little drawer on the phone will pop out. The number is 637, which is the passcode for the lock at the drawer. Tip: Click on the phone again to hang up his call.

Puzzle 8 Subscription Machine
Hint 1: You need 7,000 Yen. You can somehow get the money after you complete the task to sort out the recommended books at the counter (see Puzzle 6).
Hint 2: You need to unlock the drawer to get the money (see Puzzle 7).
Hint 3: Count and give only the exact amount.
Solution: Put the bundle of 5,000 Yen and 2,000 Yen in the empty area of the machine. Press the blue button, then the green button. Your parcel is now delivered to you - the bottom of the machine will open up.

Puzzle 9 Sets of Manga on the Bookshelf
Hint 1: You need to find three sets of manga books to complete the series.
Hint 2: The posters that are zoomable shows the title of the Manga series. The book spine should show that once you complete the entire series.
Hint 3: One of the sets is easy to get - no need to solve any puzzles.
Hint 4: One of the sets can be found after you solve the puzzle of the masks on the wall (see Puzzle5).
Hint 5: One of the sets can be found after you solve the Subscription Machine puzzle (see Puzzle 8).
Solution: The book spine of the entire series spells "Dragon Ball". From left to right, you can get the first set from the Subscription Magazine (see Puzzle 8), the second set from the display rack's cupboard that will open automatically after you solve the Masks on the Wall (see Puzzle 5), and the third one from the cabinet below the notice board.

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Secret Writer's Room
Puzzle 10 Potted Plants with Code
Hint 1: Search around the place and read all the papers that you can pick up on the table.
Hint 2: There's something in the drawer of the shelf that can lead you to an important clue.
Hint 3: You need to switch off the lights in this room.
Solution: Find the Manga script that says "Clone Technique". Follow the hand signs on that paper and match it with the board near the door. Translate the numbers on the hand signs to the projector's code you see on the wall. Turn the potted plants until they match this order, from left to right: 9, 11, 12; the coded form looks like (::), |• , |:

Puzzle 11 Unlocking the Door Behind the Counter
Hint 1: If you have not gathered all the sets of Manga to put on the bookshelf, don't worry about opening this door yet.
Hint 2: You need to solve the potted plant code (see Puzzle 10) first.
Hint 3: Did you leave something behind on the shelf with the scroll, after you solve the potted plant code (see Puzzle 10)?
Solution: Solve the potted plant code (see Puzzle 10), then obtain the cloned key that appears with the scroll. Use this key to unlock the door.

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Puzzle 12 Sushineko Plush
Hint 1: There is an important clue at the Manga Rental Shop room.
Hint 2: Look at the newspapers on the notice board.
Hint 3: Each plush has a name and a place where they like to be, according to their traits, in the Living Room.
Solution: Find out the names of the Sushineko plush from the newspaper article on the notice board, at the rental shop. Solve the riddle on the paper that says "Sushineko's Traits" and drag each plush to the location. The answer is: Nori (the one with sailor hat) near the big window, Misomeow (the one with cowboy hat) in front of the TV, Gingerball (the one with white headband) beside the round table near the wall.

Puzzle 13 Wardrobe Puzzle
Hint 1: You need to arrange the Sushineko Plush toys first, according to the riddle named "Sushineko's Traits" found on the table (see Puzzle 12).
Hint 2: Enjoy the TV programme, "Art of Crane".
Hint 3: Move the wardrobe sliding panels around.
Solution: Arrange the sliding panels according to the sequence shown on the TV, after you solve the Sushineko Plush puzzle (see Puzzle 12). When you hover over the wardrobe panels, they are named. From left to right, the correct order should be "Cupboard Right Panel" -> "Cupboard Left Panel" -> "Cupboard Middle Panel".

Puzzle 14 Mission Card
Hint 1: Examine all objects carefully. The blue key token will appear if it is a key finding.
Hint 2: Key #1 can be found in the Secret Writer's Room.
Hint 3: Key #2 can be found on the floor, around the Secret Writer's Room.
Hint 4: Key #3 can be found in Mr. Nakano's Living Room.
Solution: Key #1 can be found in the Secret Writer's Room, after you solve the potted plant code (see Puzzle 10). Key #2 can be found from the letter on the floor, below the chair in the Secret Writer's Room. Key #3 is found on the diary in the Living Room, after you solve the Sushineko Plush puzzle (see puzzle 12) and Wardrobe Puzzle (see Puzzle 13).