Where is the USB flash drive of the star office computer?
First of all, you need to go to the library to get the red book, then spell the statue in the art room on the second floor, combine the red book with the left arm of the statue, then use it on the statue to get the scepter, and investigate the scepter to get the ruby. Then take it to the gorgeous box in the observation room of the police station and combine it with ruby to form a star badge. Then check the back of the star badge, and you will get the USB flash drive.