“During the seven days I returned to my husband’s hometown, I became a woman again after a long time…” Taken to the local hot spring by her younger brother-in-law Yuji. While soaking alone, the other brother-in-law Takashi suddenly enters and approaches her… Yuji had also been peeking and, upon seeing this, rushes out demanding her. Though she resists at first, she gradually sinks under their joint assault, beginning seven forbidden days of creampie in the hot spring.