Kazuo, who had a strained relationship with his father, secretly loved his beautiful mother, Yumi. One day, seeing Yumi tenderly caring for his father as he returned home drunk as usual, Kazuo reached his breaking point and unleashed his pent-up feelings onto Yumi's body. Though Yumi feared the forbidden relationship would be exposed, she couldn't escape the pleasure. To avoid being caught by his father, the two repeatedly engaged in their affair, becoming increasingly obsessed with incest…
