Rio Nakayama

Rie, a former teacher, is married to her colleague Tsutomu and is now trying to conceive a child. However, she becomes suspicious when she finds numerous missed calls from a woman named Satsuki on her husband's phone. Gathering her courage, she confronts her husband, who explains that Satsuki is a colleague who replaced Rie and that their frequent contact is unavoidable due to work. The next day, Tsutomu is at Satsuki's apartment. Satsuki is actually a hostess at a cabaret club, and the two have been secretly meeting, seemingly enjoying a game of romance...

Takashi divorced his first wife and remarried Misa, a subordinate 24 years his junior. Three months later, Misa was enjoying happy days. However, since their marriage, Takashi had been receiving numerous anonymous letters containing collages claiming that Misa was having an affair...

Komako lost her husband, Takuya, three years ago and has been running a mountain hot spring inn by herself, but the business is in dire straits. The landowner, Daikokuda, is plotting to take over the inn and take Komako as his mistress. However, Komako has sworn to herself that she will protect the inn that her late husband left her. Then one day, her only daughter, Kaoru, who had left home and never returned, suddenly comes back with her boyfriend, Tatsuo...