Mystery Invitation
It holds hidden secrets. A noble's missing daughter, the laughter in a forest fire, a giant purple bird from a dream. Drop the invitation in the mailbox, and one of them will come to you.
Where to get it
- After accumulating 365 day logins.
What it's used for
- An invitation letter. Invites a random 6-star character to join you. If you already own all 6-star characters in the selection pool (as of Version 2.2, excluding limited characters), you may choose any 6-star character you want.