7DS Origin App
Special 100-Day Celebration Check-In
Full guide to the Special Check-In event in Seven Deadly Sins: Origin (7DSO / SDSO): its missions, reward shop, login bonuses and the complete reward table, with start and end dates.
Updated every patch — see exactly which rewards Special Check-In grants and how to claim them before the event ends.
The Special Check-In page lists the full reward table — mission rewards, shop items and any login bonuses — so you can prioritise what to claim before it ends.
The Special Check-In event page shows its start and end dates so you know exactly how long you have to complete it.