ℹ️ Information is accurate as of the date shown and can change. Confirm critical steps with official sources before acting.

1. Days before — clear the blockers

Make accounts on Interpark Global, Melon Ticket, and Yes24 NOW and verify them. The killer is the Korean phone/identity check — a Korean number (even a prepaid eSIM) clears most. Verify days ahead, not on sale day.
Pre-register a payment method that works: a foreign card often fails on Korean PG. Pre-load a virtual Korean card or have PayPal/overseas-card-enabled sites (Interpark Global) as your fallback.
Pre-fill your address/passport in the profile so checkout has nothing to type.

2. Sale minute — the 90-second sequence

Sync your clock to time.navy.mil / KST to the second. Sales open exactly on the minute; the server queue is FIFO from that instant.
Log in 5 minutes early on TWO devices (phone + desktop). Same account is fine; whichever clears the queue first, you abandon the other.
Pick your seat grade FAST, then on the seat map don’t hunt for “the best” — grab any available adjacent pair; you can’t hold seats while you deliberate.
Payment screen has a countdown (often 7–10 min). Do not refresh — refreshing can drop your hold.

Most fan-signs are album-purchase lotteries through a specific seller (Music Korea, Withmuu, Soundwave, etc.) — the album barcode = entries. The seller, not the artist, runs it.
Entries scale with albums bought from THAT seller during the window. Watch the seller’s notice page for the exact date/quantity tiers.