A composite (A), comprising a layered structure including a metal plate (B) and a reinforcing member (C) that is made of a resin and is provided on a surface on one side of the metal plate (B), wherein; the metal plate (B) 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 (C) 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 (B) further includes a guide portion provided around the hole on a surface on one side of the body portion , the guide portion is at least one of a protruding portion 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 (B) and a reinforcing member (C) that is made of a resin and is provided on a surface on one side of the metal plate (B), wherein; the metal plate (B) 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 (C) 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 (B) further includes a guide portion provided around the hole on a surface on one side of the body portion , the guide portion is at least one of a protruding portion 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 (B) further includes a guide portion provided around the hole on a surface on one side of the body portion , the guide portion is at least one of a protruding portion 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 . <EOS>