Ah the smell of the ocean! Dazai has just boarded the massive ship known as the Titanic. He managed to get a cheap voyage considering he was working as a ship errand boy. In the first class, a man named Chuuya Nakahara was also on board. Chuuya is recently engaged with a rich woman named Petrus. The two are celebrating their engagement lavishly despite the rather rocky relationship. Though Dazai and Chuuya are of different classes, it seems fate had brought them together on this exciting voyage.