To provide a system for managing a customer's own bottle kept at a chain store which can easily create a feeling that a customer's own bottle of a certain brand alcoholic drink is kept and easily manages kept bottles even in the case different prices are set according to a brand of alcoholic drink or the like among chain stores with different organizations with one another.

A computer 1 is provided with a means for generating customer information 6a and 6b, kept customer's own bottle brands 7a and 7b, a residual quantity value 8a and 8b of a bottle corresponding to a remaining amount, and a bottle image 11 with contents quantity shown by the residual quantity value data of the bottle contained on appropriate displaying parts to be displayed to a customer. A computer 1 transfers the above data to the appropriate displaying part, concretely a display for video of a Karaoke (orchestration without lyrics) terminal 10 to display the data with an appropriate connecting means.