The short answer: Korea's secondhand K-pop market runs on C2C apps like Bunjang (번개장터) and Twitter/X yangdo (양도) trades — and both are effectively closed to foreigners: the apps require Korean phone verification, and yangdo runs on Korean bank transfers between individuals. Some proxy services broker C2C deals with mixed results. KOSURAN doesn't buy from C2C marketplaces — we source from stores — so this guide explains the landscape honestly, plus the store-side alternatives that avoid C2C risk entirely.

The secondhand landscape

• Bunjang / Junggonara — Korea's big C2C apps, full of out-of-print albums and rare photocards. Foreigners generally can't register (Korean phone verification), so overseas buyers go through C2C-proxy middlemen.
• Twitter yangdo (양도) — individual fans trading via DMs and bank transfer. Cheapest prices, zero buyer protection, Korean-only.
• Photocard marketplaces — newer dedicated platforms improved this somewhat, but coverage of rare items is thin.

The honest risk profile of C2C proxying

When a middleman buys from an individual seller for you, three risks stack: the seller may not ship or may misdescribe the item; the item is used with no recourse; and the proxy can only pass along whatever happens. Community threads about weeks-long "ordered" limbo and unresponsive sellers are common. If you go this route, use a service that's explicit about C2C risk, and treat rare-item prices that look too good as the warning they are.

The store-side alternative (what we actually do)

For many "secondhand hunt" cases, a store-side route exists and is safer:

• Restocks & represses: out-of-print albums get repressed more often than people expect — Korean album stores list them first. K-pop on KOSURAN reflects live Korean store stock.
• Used-goods stores (not individuals) sometimes carry collector items with actual accountability — when such stores are in our catalog, items show a "Used" badge.
• Event re-releases: anniversary editions and MD re-runs frequently cover what collectors chase secondhand.

Bottom line

If only a specific individual's Bunjang listing will do, a specialized C2C proxy is your route — go in eyes-open about the risks above. For everything with a store-side path, buying new (or store-sold used) through a service with buyer protection is the saner default: verified source, checked at our hub, tracked shipping, support that answers.