Dust was alone for many years of his life, after he killed everyone he loved. He was alone in his AU and alone in his thoughts. And he believed, his life would stay like that forever. But when Error came into his life and took him with him, to become a part of the bad guys, it was unavoidable for Dust to see Blueberry after a time. And if was unavoidable too, that he would fall uncontrollably in love with the small Sans. Maybe, it was because Blueberry said, he believed in everyone and that everyone could be a good person. Dust had a feeling of hope because of this... That maybe at least Blue would forgive him and be his friend... And he was cute too And he would do anything, to protect him and make him love him... But, the life is full of suffering, surprises and pain, so Dust had to bring him and Blue through some troubles, before he could even start a friendship with him...