The life of Eidar, a northern slave, has been harsh and unforgiving. Despite lacking the funds to embark on a journey to the warm southern provinces, he sets out to fulfill his mother's dying wish. While struggling to find a means of travel, Eidar stumbles upon a flyer advertising male prostitution as a means to secure a free passage south. Though he has never considered such work before, Eidar decides to do whatever it takes to reach his destination. Meanwhile, Claude Whale is searching for the fourth and final map of Pfeos to clear his family's name. Failing to find it in the north, he departs and encounters Eidar on his voyage. Upon seeing the likeness of his lost love in Eidar, Claude is filled with disdain but cannot shake the attraction he feels toward the younger man. As they sail into unknown waters, will Eidar be able to withstand the lascivious tendencies of the sailors and the stern captain? Will Claude find the elusive fourth map? And what will become of the complicated relationship budding between Eidar and Claude?