After securing admission through recommendation, the son who didn't study and just played around was envied by his classmates in the midst of exam season. Furthermore, classmates who knew a secret about her husband that his wife, Rie, was unaware of used it to blackmail her. 'Take a look at this photo. Your husband is cheating on you (laughs).' Upon learning of her husband's betrayal, Rie agreed to the classmates' demands so as not to burden her son, but that was only the beginning of the tragedy...
