In a nostalgic, run-down port town reminiscent of the Showa era, there exists a brothel dedicated solely to soothing men exhausted from their sea voyages. Inside works Rena, a woman who deeply understands the pains and joys of life. This establishment is renowned as a place where men lose their virginity, and middle-aged men make it a habit to visit immediately upon returning to port. The old-fashioned streets and warm, inviting atmosphere create a uniquely intimate ambiance.