An update has been announced for Japan server, things that will be added to the game:
-New Avatar Roselle.
-Lvl cap increase to 40 (with skills of course).
-Dungeons and quests until Top Secret Facility.
-Cash shop update.
The normal would be for Roselle to be a cash item for now since the server only has a few months of life. But it will be interesting to see how long it takes until it becomes free like on Korea with all the avatars or EU/NA with Leila and Edgar.
Edit: in the end it’s not required to buy Roselle’s creator at the cash shop, she is free for all players.