Method of manufacturing content liquid containing bottle

A method of manufacturing a content liquid containing bottle, the method comprising:

• a molding step of blow molding a synthetic resin-made preform into a bottle that includes a mouth portion, a shoulder portion expanding in a direction away from the mouth portion, a barrel portion, and a bottom portion;
• a cap attachment step of attaching a cap to the mouth portion of the bottle filled with a content liquid;
• and
• a label attachment step of placing a tubular shrink label over outside of the bottle to which the cap is attached, and thermally shrinking the shrink label to attach the shrink label to the bottle,
• wherein in the label attachment step, the shrink label is thermally shrunk in a state in which one end of the shrink label is located at a region of the shoulder portion in which an inner surface is in contact with the content liquid.