This year has been stressful with various events, and Satomi hasn't had much chance to relax and enjoy diving. A 36-year-old active diving instructor, Satomi Sometani is now in her eighth year of marriage and a mother of a seven-year-old son. Despite her busy daily life, diving remains central to her world. Due to the pandemic, member activities have been restricted and her income has decreased. Amid this situation, Satomi wants to relieve her personal stress and sexual frustration—she desires to feel even greater pleasure than before. In the past, she maintained connections with fellow divers and even had casual sexual relationships. But now, everything has come to a standstill. Today, she's determined to free her emotions and release all the pent-up tension she's been holding inside. No wetsuit, no oxygen tank—she'll dive bare, with body and mind completely liberated, into a shimmering, intoxicating sea of pleasure!