Poseidon Korean Drama OST (Ending Theme Song)

Hello! I made this full version of one of the OSTs in the Korean drama 'Poseidon'. I just linked together and arranged the different parts of the song played on every ending of the episodes. I'm not sure if it's correct, since the original song was not released even though the drama had ended a long time ago. So I just went with what I think is okay.
I've been also like many others who wanted to know the title of this song so badly and listen to the full song.
I tried to get 'clean' cuts of the song, without the noise and background voices of the actors, except for the start of the second verse ( ♩ calling calling ♩ ~). It's hopeless, for me.