A composite, comprising a layered structure including a metal plate and a reinforcing member that is made of a resin and is provided on a surface on one side of the metal plate, wherein; the metal plate includes a body portion, a joint portion that is continuous at least with one end of the body portion, a hole that is formed through the body portion in a thickness direction of the body portion in the proximity of the joint portion; the reinforcing member continuously includes a main portion that covers a surface on one side of the body portion, a coupling portion formed in the hole, and a locking portion that is held in close contact with a surface on another side of the body portion; characterized in that the metal plate further includes a guide portion (4, 14, 24, 34, 44, 54, 64, 74, 84) provided around the hole on a surface on one side of the body portion, the guide portion (4, 14, 24, 34, 44, 54, 64, 74, 84) is at least one of a protruding portion (4, 14, 24, 34, 44, 54, 64, 84) provided on at least one of a rear side and a lateral side relative to the hole in a direction from the body portion to the joint portion, and a recessed portion extended from a front side relative to the hole to the hole in the direction from the body portion to the joint portion. a metal plate and a reinforcing member that is made of a resin and is provided on a surface on one side of the metal plate, wherein; the metal plate includes a body portion, a joint portion that is continuous at least with one end of the body portion, a hole that is formed through the body portion in a thickness direction of the body portion in the proximity of the joint portion; a body portion, a joint portion that is continuous at least with one end of the body portion, a hole that is formed through the body portion in a thickness direction of the body portion in the proximity of the joint portion; the reinforcing member continuously includes a main portion that covers a surface on one side of the body portion, a coupling portion formed in the hole, and a locking portion that is held in close contact with a surface on another side of the body portion; characterized in that the metal plate further includes a guide portion (4, 14, 24, 34, 44, 54, 64, 74, 84) provided around the hole on a surface on one side of the body portion, the guide portion (4, 14, 24, 34, 44, 54, 64, 74, 84) is at least one of a protruding portion (4, 14, 24, 34, 44, 54, 64, 84) provided on at least one of a rear side and a lateral side relative to the hole in a direction from the body portion to the joint portion, and a recessed portion extended from a front side relative to the hole to the hole in the direction from the body portion to the joint portion. a main portion that covers a surface on one side of the body portion, a coupling portion formed in the hole, and a locking portion that is held in close contact with a surface on another side of the body portion; characterized in that the metal plate further includes a guide portion (4, 14, 24, 34, 44, 54, 64, 74, 84) provided around the hole on a surface on one side of the body portion, the guide portion (4, 14, 24, 34, 44, 54, 64, 74, 84) is at least one of a protruding portion (4, 14, 24, 34, 44, 54, 64, 84) provided on at least one of a rear side and a lateral side relative to the hole in a direction from the body portion to the joint portion, and a recessed portion extended from a front side relative to the hole to the hole in the direction from the body portion to the joint portion.