To solve the problem that a conventional bottle case not used is obstructive when going out, and further a child is made to carry a beverage bottle, a ticket, or the like when going to an amusement park, but it is hard for the child to hang various things from his/her shoulders.

The bag-shaped bottle case is formed into a shape carried as a carry bag when going out and further serving as a bottle case when needed. The bag-shaped bottle case is attached with a clear pocket to facilitate management of a ticket or the like by the child.