An object is to provide a manipulator and a manipulator system wherein dynamic surplus is rapidly removed to achieve rapid operation of the distal-end part in response to the operation of the operating unit. The slack correction mechanism 1 disclosed herein includes a distal-end pulley 2 that is rotatable with respect to a given axis, a distal-end wire 3 wound around the distal-end pulley 2, a first supporting part 4 including a first base 41, a first friction portion 42 which extends out from the first base 41 and around which the distal-end wire 3 wound around the distal-end pulley 2 is looped on one side and a first biasing portion 43 that biases the distal-end wire 3 in a pulling direction on one end side with respect to the first friction portion 42, the first supporting part 4 being adapted to support one side of the distal-end wire 3, and a second supporting part 5 including a second base 51, a second friction portion 52 which extends out from the second base 51 and around which the distal-end wire 3 wound around the distal-end pulley 2 is looped on the other side and a second biasing portion 53 that biases the distal-end wire 3 in a pulling direction on the other side with respect to the second friction portion 52, the second supporting part 5 being adapted to support the other side of the distal-end wire 3.
