To secretly repay a debt hidden from her husband, she had been working covertly as a delivery health worker. However, due to the economic downturn, she found herself unable to earn enough money and was at her wits' end. She then plotted to engage in sugar dating with her affluent cohabiting brother-in-law. But because she was his sister-in-law, he wouldn't easily give in despite her attempts to seduce him. Using every trick in the book to charm and tempt him. The brother-in-law, who had been enduring it all, finally succumbed to his sister-in-law's advances. Although she had planned to keep the matter separate from money, their physical intimacy caused her brother-in-law to lose all restraint and completely lose his sanity.
