Calpis Amazon Gift Card Giveaway‏

Calpis has an alcohol line including popular "sour" drinks which are mixtures of fruits (or in this case Calpis) and Japanese shochu distilled spirit. This campaign is named "Otsukare Sour", which is a take off on the common Japanese phrase "otsukaresama deshita" said to co-workers or others in acknowledgement of finishing a hard day of work. In this case the acknowledgement presumably includes a can of Calpis Sour to relax. Entry is via web page using a code attached to cans. Prizes are gift certificates for Amazon Japan.

http://calpissour.jp/

Photo is a web capture for explanatory purposes, copyright belongs to the company.