PROBLEM TO BE SOLVED: To provide a container body installing a content in a container without holding it by fingers, and to provide the container and a method for unsealing a bag.SOLUTION: The container body includes a content 1, a bag 2 for sealing the content 1, and a container 3 for housing the content 1 and the bag 2. The container 3 includes openings 321 and 331 which are provided respectively on one side and the other side and are formed into shapes allowing the content 1 to be locked so as to prevent its passage. The bag 2 includes a pair of exposing parts 24 and 25 exposed from the container 3 via the openings 321 and 331, and is openable by the exposing part 24 of one side so that the content 1 exits together with the bag 2 from the bag 2 when the bag is pulled out from the opening 331 of the other side. The container 3 further includes holding means 34 for holding the content 1 while the bag 2 is pullable from the opening 331 of the other side.
