Chiaki Niimura is 34 years old. He has been married for 14 years, including his cohabitation, with his husband, who got married after 6 years of great love. I didn't dislike it, but when I noticed it, they became like air to each other ... What bothers Chiaki even more is the voice of her mother-in-law, which is often heard from downstairs in the middle of the night. (Even my mother-in-law, who is close to her 60th birthday, is pleased as a woman ...) Is it inevitable that Chiaki-san, who is so embarrassed that she can no longer be her husband, will seek pleasure outside? He seems to keep 5 or 6 "convenient male friends" he met in dating.