The day before she was supposed to visit her in-laws with her husband and son, Nagisa received a message from her fuck buddy, Ohshima, saying, "I managed to get tomorrow off, I want to see you." At first, she tried to refuse, but the anxiety of not knowing when they'd meet again if she turned him down, combined with her unbearable sexual frustration, proved too strong to resist. In the end, she lied to her husband and son, stayed home alone, and invited Ohshima over. Under the same roof, free from the watchful eyes of her family, they spent time together just as a couple. The exhaustion from daily life and the stress of keeping secrets melted away instantly, allowing her to fully indulge and enjoy herself that night. Their emotions ran high—no words were needed, only the endless touching and loving they shared with each other.