Mercari

Mercari Japan is one of Japan's largest consumer-to-consumer (C2C) marketplace apps, where individuals buy and sell used and new items directly with each other. It covers almost every category, clothing, electronics, collectibles, anime and idol goods, cosmetics, toys, and more, often at prices well below retail. Because it's peer-to-peer, selection is huge and constantly changing, but items are typically one-of-a-kind and sell out fast, making it popular with overseas buyers seeking unique or hard-to-find Japanese goods.