A traveling oil massage service currently running a promotional campaign offering first-time use for 2000 yen is drawing significant attention. Despite short sessions, the intense and deeply satisfying treatments have become a hot topic, earning strong support among women. The massage focuses particularly on the groin area, effectively awakening long-dormant female sensuality. With built-up desires from daily life, many married women are inviting these sessions into their homes during times when their families are away. Numerous customers find the trial period insufficient, leading to increasing demands for extended sessions. What begins as a casual massage unexpectedly leads to intense climaxes, convulsions, and overwhelming ecstasy.