Tomoko (37) had little romantic experience even before marrying her husband. When they met, he came with his family, quickly proposed divorce from his previous spouse, and asked her to marry him. Swept up in the momentum, they began living together and married within six months, shortly after which she gave birth to a child. Her husband did not choose marriage out of love. As she started working, he began treating her with unnatural suspicion and growing jealousy. Feeling suffocated at home, she decided to embark on a forbidden trip just before their tenth wedding anniversary. Embraced by a man she met for the first time during her journey, she found herself confused yet gradually seeking pleasure, stepping into a new world of emotions.