There was an issue for DLC just after releasing.
Then we fixed it and DLC is now available!
We apologize for the inconvenience caused.
Anyway, thank you for enjoying our game! We are so glad to hear your wonderful feedback!
DLC is now available!
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.