A connector comprising: a terminal clasp; a housing that stores the terminal clasp and that is configured to be fitted and connected to the counterpart housing of a counterpart connector in a fitting connection direction; and a cover that covers, from outside, at least part of the housing and a conductive part protruding from the housing, wherein the housing includes a lock body that is lockable to a counterpart lock body of the counterpart housing so that fitting connection with the counterpart housing is not canceled, and a lock cancellation arm that deforms with application of lock cancellation force on a point-of-effort part and cancels a state in which the lock body is lockable to the counterpart lock body, and the cover includes a wall that covers the housing up to a position of the point-of-effort part in the fitting connection direction, an exposure part formed at the wall to expose the point-of-effort part, and a lock cancellation operation body that is elastically deformable, includes an operation part capable of receiving a press movement operation, blocks the exposure part with a gap between the lock cancellation operation body and the periphery of the exposure part so that deformation along with the press movement operation is possible, and can apply the lock cancellation force to the point-of-effort part through deformation along with the press movement operation, the housing includes therein a virtual plane aligned with the fitting connection direction and orthogonal to a direction in which the lock cancellation force is applied, and the operation part is formed in a tilt shape in which the shortest distance between the virtual plane and a point positioned on the operation part along the fitting connection direction increases as the point moves further in the fitting connection direction, characterized in that the cover includes a shielding body that covers the gap between the lock cancellation operation body and the periphery of the exposure part from the operation part side. a terminal clasp; a housing that stores the terminal clasp and that is configured to be fitted and connected to the counterpart housing of a counterpart connector in a fitting connection direction; and a cover that covers, from outside, at least part of the housing and a conductive part protruding from the housing, wherein the housing includes a lock body that is lockable to a counterpart lock body of the counterpart housing so that fitting connection with the counterpart housing is not canceled, and a lock cancellation arm that deforms with application of lock cancellation force on a point-of-effort part and cancels a state in which the lock body is lockable to the counterpart lock body, and the cover includes a wall that covers the housing up to a position of the point-of-effort part in the fitting connection direction, an exposure part formed at the wall to expose the point-of-effort part, and a lock cancellation operation body that is elastically deformable, includes an operation part capable of receiving a press movement operation, blocks the exposure part with a gap between the lock cancellation operation body and the periphery of the exposure part so that deformation along with the press movement operation is possible, and can apply the lock cancellation force to the point-of-effort part through deformation along with the press movement operation, the housing includes therein a virtual plane aligned with the fitting connection direction and orthogonal to a direction in which the lock cancellation force is applied, and the operation part is formed in a tilt shape in which the shortest distance between the virtual plane and a point positioned on the operation part along the fitting connection direction increases as the point moves further in the fitting connection direction, characterized in that the cover includes a shielding body that covers the gap between the lock cancellation operation body and the periphery of the exposure part from the operation part side.