They want a child, but can't seem to get pregnant. Worried, husband Kazuya and wife Satomi decide to try abstaining from sex for a month. They don't even masturbate during that time, a life of abstinence. "This is all for the sake of having a child," Kazuya says as he feels his balls filling up with sperm with each passing day. "If I get pregnant, I'll spread the word on social media," Satomi says, her heart swelling with anticipation. Kana, the mother who lives with the couple, is secretly watching them. While one would think she is watching over the young couple, she actually has other thoughts in mind.