System and facility

A facility which is separated from outside, comprising:

• a door;
• a recognizing unit that recognizes the door being operated;
• a locking unit that unlocks the door during a first unlockable time window based on first authentication of a first user for whom the facility is reserved for a first time period, the first unlockable time window beginning at a first time point that is earlier than a start time of the first time period by a predetermined allowance time and expiring at a second time point determined based on an end time of the first time period;
• a first device disposed inside the facility that enters an operating state in response to the door being opened for the first time in operating hours of the facility;
• and
• a second device disposed inside the facility that enters an operating state at the start time of the first time period and exits the operating state in which the second device has been in at an end time of the first time period.