A connector (10) according to the present disclosure is fitted with a connection object (60). The connector includes a first insulator (20), a second insulator (30) movable relative to the first insulator (20), and one or more contacts (50) mounted to the first insulator (20) and the second insulator (30), wherein the second insulator (30) has a receiving portion (33) that is superimposed on the first insulator (20) from a fitting side in a fitting direction between the connector (10) and the connection object (60).