An aerial vehicle (1A, 1B, 1C) comprising: an airframe (1201; 2201; 3201); a propulsive mechanism (1202; 2202; 3202) provided in the airframe (1201; 2201; 3201); a lift generation member (1110; 1186; 2110; 2186; 3110) provided in the airframe (1201; 2201; 3201) in an expandable manner; an expansion apparatus (1115; 1190; 2115; 2190; 3115) configured to expand the lift generation member (1110; 1186; 2110; 2186; 3110); a control unit (1420; 2420); and a falling sensing unit (1421; 2421) configured to sense falling of the airframe (1201; 2201; 3201) and to provide a falling sensing signal to the expansion apparatus (1115; 1190; 2115; 2190; 3115) and the control unit (1420; 2420), the expansion apparatus (1115; 1190; 2115; 2190; 3115) being configured to expand the lift generation member (1110; 1186; 2110; 2186; 3110) upon receiving the falling sensing signal, a manipulation mechanism connected to the lift generation member (1110; 1186; 2110; 2186; 3110) and configured to manipulate the lift generation member (1110; 1186; 2110; 2186; 3110) with the lift generation member (1110; 1186; 2110; 2186; 3110) having been expanded; a downward condition detector (1424; 2424) configured to detect a condition below the airframe (1201; 2201; 3201); and a determination unit configured to determine whether there is anybody at a target position of falling based on the information detected by the downward condition detector (1424; 2424), wherein the control unit (1420; 2420) is configured to control the manipulation mechanism and to start control of the manipulation mechanism upon receiving the falling sensing signal; the control unit (1420; 2420) is configured to determine the target position of falling of the airframe (1201; 2201; 3201) based on information detected by the downward condition detector (1424; 2424) and to control the manipulation mechanism such that the airframe (1201; 2201; 3201) is steered for the target position of falling; and the control unit (1420; 2420) is configured to change the target position of falling and to control the manipulation mechanism such that the airframe (1201; 2201; 3201) is steered for the changed target position of falling, when the determination unit determines that there is somebody at the target position of falling. an airframe (1201; 2201; 3201); a propulsive mechanism (1202; 2202; 3202) provided in the airframe (1201; 2201; 3201); a lift generation member (1110; 1186; 2110; 2186; 3110) provided in the airframe (1201; 2201; 3201) in an expandable manner; an expansion apparatus (1115; 1190; 2115; 2190; 3115) configured to expand the lift generation member (1110; 1186; 2110; 2186; 3110); a control unit (1420; 2420); and a falling sensing unit (1421; 2421) configured to sense falling of the airframe (1201; 2201; 3201) and to provide a falling sensing signal to the expansion apparatus (1115; 1190; 2115; 2190; 3115) and the control unit (1420; 2420), the expansion apparatus (1115; 1190; 2115; 2190; 3115) being configured to expand the lift generation member (1110; 1186; 2110; 2186; 3110) upon receiving the falling sensing signal, a manipulation mechanism connected to the lift generation member (1110; 1186; 2110; 2186; 3110) and configured to manipulate the lift generation member (1110; 1186; 2110; 2186; 3110) with the lift generation member (1110; 1186; 2110; 2186; 3110) having been expanded; a downward condition detector (1424; 2424) configured to detect a condition below the airframe (1201; 2201; 3201); and a determination unit configured to determine whether there is anybody at a target position of falling based on the information detected by the downward condition detector (1424; 2424), wherein the control unit (1420; 2420) is configured to control the manipulation mechanism and to start control of the manipulation mechanism upon receiving the falling sensing signal; the control unit (1420; 2420) is configured to determine the target position of falling of the airframe (1201; 2201; 3201) based on information detected by the downward condition detector (1424; 2424) and to control the manipulation mechanism such that the airframe (1201; 2201; 3201) is steered for the target position of falling; and the control unit (1420; 2420) is configured to change the target position of falling and to control the manipulation mechanism such that the airframe (1201; 2201; 3201) is steered for the changed target position of falling, when the determination unit determines that there is somebody at the target position of falling.