Won-jin被公司突然送到附近地区。 他下楼时毫无准备，他打电话给住在那里的朋友张勋。 张勋让让元珍暂时留在家中，但元进开始思考。原因是常勋的年轻的妻子秀荣与元锦有一段历史。 不过，元珍决定去张勋的家看宋秀荣。 Chang-hoon恰好离开了这个房子，Won-jin遇到了Soo-yeong也是住在那里的迷人的朋友Kyeong-hee。袁锦开始和引诱他的秀英和庆熙一起生活。
‘A dangerous cohabitation with the young sister-in-law begins!’
Won-jin is sent into a nearby region suddenly by the company. He is unprepared when he goes down so he calls his friend Chang-hoon who lives there. Chang-hoon lets Won-jin stay at his house for the time being but Won-jin gets to thinking.The reason is, Chang-hoon’s young wife Soo-yeong has a history with Won-jin. However, Won-jin decides to go to Chang-hoon’s house to see Soo-yeong. Chang-hoon just happens to leave the house for a while and Won-jin meets Soo-yeong’s glamorous friend Kyeong-hee who is also living there.Won-jin starts living with Soo-yeong and Kyeong-hee who starts seducing him.