When a fifteen-year-old cold-blooded killer was killed and time-traveled into a baby, the hard-won warmth of his home finally stirred up his heart. The tree caught the wind, and his family was wiped out. With overwhelming anger and hatred, he had been living under hatred for more than ten years. Appeared, occupying his whole heart, but when he looked at him standing in front of the enemy, his past promises were broken one by one. Reality slapped him hard for a person who never knew he would betray. His heart was confused and destroyed in him. For a moment, he didn't know where to go. Can he believe his words?