Unique and unusual world of "rounded corner cards"

Beyond simply being a collector's item, "rounded-corner cards" have become a means of communication and an integral part of fandom culture.

Fans often trade and exchange cards to collect the cards they want to own.

"Rounded-corner cards" are small, compact photos of idols, randomly included in albums. Fans constantly buy albums to get their favorite "rounded-corner card." It would be a shame if that precious "rounded-corner card" got crumpled or torn. Fans have invested in top loaders (clear plastic cards) to protect the card when carrying it around. The world of "rounded-corner cards" has become richer and more interesting thanks to the trend of decorating top loaders. With just stickers, self-drying clay, glue, and charms, fans can unleash their creativity, turning top loaders into eye-catching accessories for social media. The "poka ritual" is also becoming increasingly popular among young people. This is the moment when fans take out their favorite "rounded-corner card" and take a photo while eating delicious food or traveling, to preserve the joy with others who share the same interests.

Source: https://nld.com.vn/doc-la-the-gioi-card-bo-goc-196240615210513654.htm