PC Software: I Am an Air Traffic Controller 4 - Sendai Airport (Boku Kan) This is a used copy of the packaged version. The contents are as follows: * DVD disc * Airport Guide * Instruction Manual * Serial Number Card The serial number and online ID required for installation are listed on the card, so please enter them as shown in the fourth image. Installation has been completed successfully, and I have confirmed that it can be launched. It has been uninstalled from this PC. The online ID and serial number are linked, and the software is designed to 【only work on the last PC it was installed on】. Therefore, the PC needs to be constantly connected to the internet. I am also selling other items from the same series, and I will offer a discount to those who purchase multiple items.