Trusting and easily swayed, Kana is rescued from a scam by her brother-in-law Taichi. A deep-sea fisherman starved for a woman's touch, he sees through her hidden desires and smoothly talks her into agreeing to just one time. Unable to firmly refuse, she is raped repeatedly, and her body grows increasingly sensitive. Before long, she is swept away by forbidden, full-body pleasure that her passionless husband has never given her.