Kana is dating Koji with marriage in mind, but she has never told him about her past working at a brothel. That secret has been a heavy burden for her, especially since she wanted to keep it hidden from Koji's family at all costs. Today, Kana visits Koji's father for the first time—until now, they've only spoken on the phone. She plans to move to Koji's hometown and work there after marriage, proposing they live together with his father until her job stabilizes. However, this visit leads to an unexpected shock. Koji's father is the very man who once exploited Kana during her time in the sex industry. Once this truth comes to light, Kana's secret crumbles instantly, throwing her future marriage into serious jeopardy.