When they were young, they had a beautiful encounter, but fate then strangled the unfortunate man and woman, leaving them wandering on the edge of day and night with the sin of killing their father and mother... 14 years ago, Xueho (played by Mayuko Fukuda) and Ryoji (played by Yuki Izumisawa) grew up in a disharmonious family: Xueho and her mother depended on each other, but unexpectedly, her mother sold her daughter's body for a living; Ryoji's family of three seemed to be happy, but Ryoji knew that his mother had had an affair behind his father's back. One day, Ryoji met Xueho by chance, and was shocked by her beauty. He took the initiative to approach her and gradually moved her cold heart with his enthusiasm, and pure love began to sprout in the hearts of boys and girls. Tragedy soon came unexpectedly, and Ryoji suddenly discovered that his beloved father was actually Xueho's guest! In anger, he killed his father, and Xueho secretly killed his mother to protect Ryoji. Under careful concealment, their actions were not discovered. 14 years later, Yukiho (Ayase Haruka) and Ryoji (Yamada Takayuki) embarked on a path of continued crime in order to keep this secret. When will they be able to wait for redemption?