Within the northern ocean lived 2 outcasts by the names of Yule and Iceberg. They are a narwhal and beluga duo. However, the reason for them being outcasts is very complicated. Yule is a double tusked narwhal, meaning that the other narwhals look down on him and even criticize him for having such things. Thus, his mother raised him alone after they were banished from their pod when he was younger. It wasn't easy, but she managed to raise Yule. As for Iceberg, this was an ironic kind of situation. She's ironically named Iceberg, but is melanistic instead of white like the other belugas. She and her father were banished from their pod she was very young too. It wasn't easy either, but her father raised her in a manageable way.
As both grew up, they weren't liked very much and were always an easy target to be made in real delicacies. However, they know many parts of the northern oceans like the back of their flippers, due to them having good hiding places. Not to mention that they are good friends too, but often want a new life together. They'll get that as soon as they start to make a journey together.