Megumi, who was favored by her father-in-law Ryotaro and married her husband Kazuya, struggles to get used to her new home quickly by doing housework, but she is naive and can't do anything and makes mistakes, which earns her sarcastic comments from her sister-in-law Miki every day. One day, when Kazuya is away on a business trip, Ryotaro, who had been kind to her until then, reveals his true nature and rapes Megumi by force. Miki, who has been watching this, threatens Megumi, saying that if she doesn't want her brother to tell on her... she makes her experience the greatest shame and humiliation possible...
