Yu's mother passed away due to a serious illness just as he was born. To ensure his son lacked for nothing, Yu's father threw himself into work. Although he became wealthy, he left Yu to be all alone. Six months ago, Yu's father remarried Kumi. Although he had never met his mother, Yu felt that Kumi resembled her a lot. Kumi always tried to be a good mother, providing love for Yu, but he continued to reject and distance himself from her. Yu did not regard Kumi as a stepmother, but always saw her as an unrelated woman. And in an opportunity that arose, Yu made Kumi do something incredibly wrong, which neither of them could turn back from...