Is It Time?

You stand at the walls of the city. Beyond, the sea: this is the closest you can get, no further, not a single step. But she whispers to you, through the keyhole. Press your body to the dyke, feel your heart beating against the stone, ear to the aperture to hear her sing. There is a way through, but what lies beyond is devastating. Is the devastation worth it? You love her, the sea, the sea, the endless sea. Her call will not cease. Find the key, welcome the sea. You've come this far already, why not?

NOTE: CAN SOMEONE PLEASE TELL ME HOW TO MAKE AN ACTUAL PASSWORD BOX! After hours of looking I gave up because all the coding tutorials are so corpo and don't understand I'm trying to play a silly little game here! Anyway, go ahead and type whatever into the box, it will open the floodgates readily. Looks like Ys is doomed.