[Events]Total Playtime Event

[Notice]How to Link Cross Platform Account (Steam)

[Events][Edited] Complete Objective Festa Event (Nov. 7 15:40 UTC+9 edited)

[Notice]UNDECEMBER Official Service Grand Opening Announcement

[Notice][UNDECEMBER] Game Operational Policy

[Rate Info]UNDECEMBER Rate Information

[Notice][Time Changed] Change of UNDECEMBER Server Official Launch Time

[Notice]UNDECEMBER pre-download and official release date announcement

[Notice]A Director's Letter

[Events]STEAM NEXT FEST with UNDECEMBER!