A razor comprising: a handle; a frame coupled to one end of the handle; a spacer disposed above the frame; a top cap mounted at a top of the spacer; a first blade secured between the frame and the spacer and having cutting edges on both ends in a lateral direction; a second blade secured between the spacer and the top cap and having cutting edges on both ends in a lateral direction, a first coupling portion disposed at the end portion of the handle; a handle connecting portion projected from a bottom surface of the frame toward the handle so as to be able to be connected in a longitudinal direction of the handle; guard bars disposed at both lateral ends of the frame to be adjacent to cutting edges of the first blade; and groove portions configured to forming an open space into which top cap corners of both lateral ends of the top cap can be inserted between the guard bars and an upper surface of the frame and having a shape corresponding to the top cap corners to prevent the top cap from lateral movement, wherein the first blade is supported by at least a portion of a top surface of the frame and at least a portion of a bottom surface of the spacer such that a first profile of the first blade is convexly curved upward, wherein the second blade is supported by at least a portion of a top surface of the spacer and at least a portion of a bottom surface of the top cap such that a second profile of the second blade comprises a curved central region that is convexly curved upward and a pair of curved side regions that are concavely curved downward on opposite sides of the central region, wherein a projecting amount of a cutting edge of the first blade from a shaving plane and a projecting amount of a cutting edge of the second blade from the shaving plane are the same; and wherein an inside of the handle connecting portion is configured to be coupled to an outer wall portion of the first coupling portion in a snap-fit manner. a handle; a frame coupled to one end of the handle; a spacer disposed above the frame; a top cap mounted at a top of the spacer; a first blade secured between the frame and the spacer and having cutting edges on both ends in a lateral direction; a second blade secured between the spacer and the top cap and having cutting edges on both ends in a lateral direction, a first coupling portion disposed at the end portion of the handle; a handle connecting portion projected from a bottom surface of the frame toward the handle so as to be able to be connected in a longitudinal direction of the handle; guard bars disposed at both lateral ends of the frame to be adjacent to cutting edges of the first blade; and groove portions configured to forming an open space into which top cap corners of both lateral ends of the top cap can be inserted between the guard bars and an upper surface of the frame and having a shape corresponding to the top cap corners to prevent the top cap from lateral movement, wherein the first blade is supported by at least a portion of a top surface of the frame and at least a portion of a bottom surface of the spacer such that a first profile of the first blade is convexly curved upward, wherein the second blade is supported by at least a portion of a top surface of the spacer and at least a portion of a bottom surface of the top cap such that a second profile of the second blade comprises a curved central region that is convexly curved upward and a pair of curved side regions that are concavely curved downward on opposite sides of the central region, wherein a projecting amount of a cutting edge of the first blade from a shaving plane and a projecting amount of a cutting edge of the second blade from the shaving plane are the same; and wherein an inside of the handle connecting portion is configured to be coupled to an outer wall portion of the first coupling portion in a snap-fit manner.