Sign-In Slips have a weekly expiration date and are not permanent items.
The expiration cycle works as follows:
- Sign-In Slips are acquired on a weekly basis, from Monday after server reset 04:00 (UTC+9) to the next Monday before server reset 03:59 (UTC+9).
- All slips obtained during this period expire on the following Monday after server reset 04:00 (UTC+9).
Expired Sign-In Slips are automatically converted into 1,000 Stellin each.
To avoid this conversion, please use your Sign-In Slips before they expire.