Saito-kun, who will be a college student this spring, has decided to take a part-time job as a book sorter. Saito-kun's job is to carry the books to the packing machine and pack them. The packing machine is different for each type of book, so please be careful not to make a mistake.

[What kind of game? ]
A simple falling puzzle game. A puzzle game that can be played with simple operations. A puzzle game that can be enjoyed by both children and adults.

[Rule]
If you line up four or more books of the same type vertically or horizontally, you can erase them. Furthermore, if you arrange 4 or more books including the packing machine vertically or horizontally, you can erase the book and the packing machine. The game is completed if you can erase all the packing machines.
There are damaged books among the books, and if you erase the packing machine including the damaged books, the game will be over. Do not pack damaged books. In addition, if a packing machine is not included, it is okay to erase it.

[How to operate]
Tap to rotate the book
Swipe to move the book
Flick down to instantly land the book
You can play with very simple operations!

[3 play modes]
There are 3 play modes
Normal mode : Mode in which you can select "speed",' "number of packing machines,"' and "whether or not there is a time limit"
Stage mode : Mode in which you play with the aim of completing all 20 stages
Overtime work mode : Mode to play by selecting frome 3 levels of difficulty

[Recommended for these people]
People who like falling puzzle games
People who want to become good at falling puzzle games
People who want to kill time
People who want to use their brains to prevent blurring
Anyone can have fun!