A server apparatus includes a communication unit, and a control unit configured to send an instruction for causing flight vehicles to perform a flight operation, to the flight vehicles. The flight operation includes energizing, by a first flight vehicle, a penetration tool toward a target object in a space, holding a first part, penetrated through the target object, and a second part, not penetrated through the target object, of a cord-shaped member attached to the penetration tool, and flying to outside the space, waiting, by a second flight vehicle, outside the space and receiving any one of the first and second parts from the first flight vehicle, and towing, by the first and second flight vehicles, the target object with the cord-shaped member and transporting the target object to outside the space by flying while respectively holding any one and the other of the first and second parts.