Among Doraemon’s thousands of treasures, the 4-dimensional space bag is probably the one that appears most often, but is also the least mentioned.
Doraemon’s 4-dimensional space bag is semicircular in shape and very simple in white.
In addition, in extended story collections such as Doraemon Extra or Doraemon Army Extra, which are set in the robot training school that Doraemon attended, readers can also see that most of the cat robots are equipped with air bags.
Although the 4-dimensional space bag has a quite compact shape, the space inside the bag is 4-dimensional space, expanding infinitely.
Thanks to such wonderful uses, the 4-dimensional space bag has become a treasure that many people desire in reality, because using this bag can help transport furniture and luggage without spending too much effort.
In addition, this treasure bag can also be linked to a backup treasure bag.
In most stories as well as anime, whenever Doraemon falls into an emergency situation, he often rummages through his bag or mistakenly takes one treasure for another.
Every time you need to get something, you have to be very calm and concentrate on thinking about the item you want to get.
The unique way of using the bag puts users at quite a disadvantage when they need to retrieve or find items in an emergency, because then it is difficult to focus and think exactly about the item they want to take out.
