After leaving Tina's Mindrealm, you sleep at the tavern for 3 days. Airona tells you that your body holds a Resonance Power capable of stabilizing lives eroded by Void Engram. It probably has something to do with your forgotten past. It was thanks to this mysterious power that you were able to save Tina. Now, with the Fireworks Festival about to begin, Airona invites you to go out and enjoy it with her.
At twilight, you head to the beach to meet her and enjoy the Fireworks Festival together. Beneath the stars and fireworks, you make a promise for the future.