How a K-pop comeback works, step by step

Photo: K-POPIT 케이팝잇, CC BY 4.0. Adapted for the web.
A comeback is much more than releasing an album. It is a campaign lasting several weeks, with a schedule fans follow almost to the minute.
Before the release
The agency publishes a promotion schedule and, day by day, out come concept photos, the track list, music video teasers and album snippets.
Release day
The music and video usually come out at the same time worldwide, often at 6 pm Korean time, which is the morning in Spain. Fandoms organise to stream and watch together.
Promotion weeks
The group performs on South Korean TV music shows such as M Countdown, Music Bank, Show! Music Core and Inkigayo. Each gives a weekly trophy, and winning the first one is a huge moment, especially for new groups.
The physical album
Albums come in several versions with random photocards. Hence the swaps between fans and the full binders.
And then, the tour
Many comebacks end in a tour. If it comes to Spain, you have the guide to your first concert. And if you want more words, go back to the dictionary.