Eidar is a slave whose life has been rough and harsh in the cold northern provinces. However, Eidar decides to go to the warm southern provinces as her mother's wish, even though he doesn't have enough money to get on a ship. Then he finds a recruiting flier of a male prostitute, which says if he's a male prostitute, he could get on a ship for free. He has never worked as a male prostitute, but he decides that he will do whatever it takes to get to the south. As a result, he gets on board as a male prostitute. Meanwhile, Claude Whale struggles to find the final fourth map of Pfeos that will help him clear his family name. As Claude fails to locate the map in the north where the news he came across informed him otherwise, he decides to leave the north, and that's when he meets Eidar on his ship. Claude hates Eidar the moment he lays his eyes on him because Eidar looks so much like Julian, whom he loved but got betrayed. However, he can't resist the pull he feels toward Eidar. Will Eidar be able to get to the south in one piece after sailing with a bunch of horny sailors and the grumpy captain? Will Claude Whale be able to find the fourth map that will help him clear his family name? How will the relationship between the captain and Eidar unfold?