I Was Stabbed in the Back at the Beginning but Was Saved by the System and Became Invincible?

In his previous life, he was born into a miserable family, with beatings and domestic violence day and night. In order to protect him, his mother was beaten to death by his "father" in front of him. After enduring the humiliation and burden for many years, he killed his "father" to avenge his mother. With his life on his back, he was forced to go far away and join a mercenary group. After joining the group, he practiced day and night, and he became the sharpest knife in the mercenary group. However, he died at the hands of his teammates who lived, ate, and trained together. When the hot blood blurred his vision, Ye Bai had only one thought: If there was an afterlife, he would never make the same mistake again. When he opened his eyes, he was reborn in the body of a baby who should have died long ago. He was surrounded by a strange "family" and had a system in his hand that could increase his combat power. The loneliness and betrayal of his previous life were still before his eyes. Those painful memories kept washing over his mind. His family in the past, every action he took when he joined the mercenary group, and the intrigues among the team members had already exhausted him physically and mentally. The backstabbing of his teammates made him even more crazy. All the experiences in his previous life had nowhere to vent. When he opened his eyes again, he came to a world where strength was respected. He became a young man who needed to look up to others, but he had a system on his wrist that could accumulate combat power. No unnecessary emotions, no false warmth—— The fighting in his previous life taught him that the law of the jungle is the only law. In this life, the system is his sharp blade, the experience of his previous life is his shield, and his opponents will be the stepping stones on his way to becoming king.