Samantha Thavasa is one of the popular bag brands in Japan. They designed the original bag using illustrations of the LINE sticker. LINE sells this at their e-commerce service "LINE secret sale".
At LINE secret sale, we can buy limited products in LINE. When we add LINE secret sale to own friends in LINE, we can receive the sale information of limited products, and we cannot buy these in a shop and other Web site. LINE secret sale started in last September. It became popular immediately, and now, the limited products are sold out from an exhibition in three minutes.
The LINE bag of Samantha Thavasa is sold with a limitation of 500 for 8,400 yen from 12:00 on August 14. I think that this sells immediately, too.