For a start, Irena lives in the Deepsea Town. Used to live with her sister, but she eventually left to travel the farthest pitches of the sea.

Now, with the absence of her sister, Irena tends to feel lonely. "Feels empty without her", is what Irena says regarding the emptiness of the house without her beloved sister.

Irena was not really doing anything, just looking at a picture on her bookshelf of her and her sister.

Knock, knock, knock.

Someone was on the other end of the door.