A turning system comprising: a steering wheel; a turning actuator that has an electric motor incorporated thereinto and is configured to turn turning wheels; and a control device, wherein the control device is configured to perform: a steering operation amount calculating process of calculating a steering operation amount (Ts ∗), wherein the steering operation amount is an operation amount that is convertible to a torque required for the electric motor as an operation amount of the electric motor for turning the turning wheels to control a steering torque (Th) to a target steering torque (Th ∗) by feedback control, the steering torque is input by a driver; an angle command value calculating process of calculating an angle command value (θp ∗), the angle command value is a command value of a convertible angle (θp) that is convertible to a turning angle of the turning wheels based on the steering operation amount; an angle operation amount calculating process of calculating an angle operation amount (Tt ∗), the angle operation amount is an operation amount that is convertible to a torque required for the electric motor as an operation amount for controlling the convertible angle to the angle command value by feedback control; an operation process (M74, M76, M78) of operating a drive circuit of the electric motor to control the torque of the electric motor based on the angle operation amount; and a correction process of correcting a parameter upstream from the angle operation amount calculating process such that a drag force resisting an operation of the steering wheel for increasing magnitude of the turning angle is applied when the magnitude of the turning angle is equal to or greater than a turning angle threshold value (θpth). a steering wheel; a turning actuator that has an electric motor incorporated thereinto and is configured to turn turning wheels; and a control device, wherein the control device is configured to perform: a steering operation amount calculating process of calculating a steering operation amount (Ts ∗), wherein the steering operation amount is an operation amount that is convertible to a torque required for the electric motor as an operation amount of the electric motor for turning the turning wheels to control a steering torque (Th) to a target steering torque (Th ∗) by feedback control, the steering torque is input by a driver; an angle command value calculating process of calculating an angle command value (θp ∗), the angle command value is a command value of a convertible angle (θp) that is convertible to a turning angle of the turning wheels based on the steering operation amount; an angle operation amount calculating process of calculating an angle operation amount (Tt ∗), the angle operation amount is an operation amount that is convertible to a torque required for the electric motor as an operation amount for controlling the convertible angle to the angle command value by feedback control; an operation process (M74, M76, M78) of operating a drive circuit of the electric motor to control the torque of the electric motor based on the angle operation amount; and a correction process of correcting a parameter upstream from the angle operation amount calculating process such that a drag force resisting an operation of the steering wheel for increasing magnitude of the turning angle is applied when the magnitude of the turning angle is equal to or greater than a turning angle threshold value (θpth). a steering operation amount calculating process of calculating a steering operation amount (Ts ∗), wherein the steering operation amount is an operation amount that is convertible to a torque required for the electric motor as an operation amount of the electric motor for turning the turning wheels to control a steering torque (Th) to a target steering torque (Th ∗) by feedback control, the steering torque is input by a driver; an angle command value calculating process of calculating an angle command value (θp ∗), the angle command value is a command value of a convertible angle (θp) that is convertible to a turning angle of the turning wheels based on the steering operation amount; an angle operation amount calculating process of calculating an angle operation amount (Tt ∗), the angle operation amount is an operation amount that is convertible to a torque required for the electric motor as an operation amount for controlling the convertible angle to the angle command value by feedback control; an operation process (M74, M76, M78) of operating a drive circuit of the electric motor to control the torque of the electric motor based on the angle operation amount; and a correction process of correcting a parameter upstream from the angle operation amount calculating process such that a drag force resisting an operation of the steering wheel for increasing magnitude of the turning angle is applied when the magnitude of the turning angle is equal to or greater than a turning angle threshold value (θpth).