Assume in this game you are a mechanical engineer whose job is to maintain the fastest train on the Earth the Japanese bullet trains. These trains are capable of reaching the breath-taking 300km/h speed. As a consequence it can cross this vast country within hours. One day while you were checking the electrical devices and mechanial parts inside a carriage suddenly you pressed a button which locked all of the doors. The blocking could only be lifted from outside but everyone had already left home. Find hidden objects and fit them together to realize what you should had done instead of waiting until morning. Good luck!