"This is troubling... Please stop..." Serina's father-in-law, who dreams of bathing together without water, enters the bathroom while she's taking a bath, despite her discomfort. Serina finds herself unable to firmly refuse him, even though she's bewildered by his sudden actions. This is the first time her usually gentlemanly and kind father-in-law has acted so out of character. As she worries about causing a stir, she's gradually cornered into a corner of the bathroom. When her father-in-law, with his usual smile, squeezes her ample breasts, Serina realizes that a crack has appeared in their peaceful married life...