I would like to know how to operate the smart home via the Application.

You can control the equipment inside the house using the iPad installed in the house or through an app. Operations are possible from check-in to check-out.
Operating via the App

Select the relevant booking card from the Key within the Application.
Select Home Control displayed at the bottom of the booking card screen, or swipe right to select Home Control.
You may operate each device via Operate.
  *The app does not allow control of the cold water bath or bathroom.
  *For instructions on operating each piece of equipment, please refer to the section on operating equipment within the facility.