Anybody know the title of the OST that played in the scene where Traveler and Columbina set sail for the moon?

Where the camera pans after the boat stops moving. Ik its the main theme but with a more melodramatic tone.

[https://www.youtube.com/watch?v=F0-mWFW-3FM](https://www.youtube.com/watch?v=F0-mWFW-3FM)

but it just sounds so good