General boutiques will have them, but there will be fewer ones that specialize in selling peripherals. Other purchasing channels:
1. Purchase at the fan club, because everyone is a fan of the same star, so the variety is relatively complete.
2. Buy from the official website, because these are launched by celebrity companies or studios at specific events, and they are all more commemorative.
3. Buy with the station sister, because they have the opportunity to get close to the stars, so they will have some photos and even autographs of the stars, so it has become the choice of many fans.