The Supporting Male Character Cultivates Immortality, While the Protagonist Is Sacrificed

Shen Ling was supposed to obediently play his role as the male lead's sidekick. But on the eve of the male lead's apprenticeship, he awakened! What?! I went berserk, and my master drove me down the mountain? To get revenge, I squandered all my family's resources, slaughtered innocents, and committed countless unforgivable crimes? The male lead brutally murdered my parents and wiped out my family, while all I could do was kneel at his feet and beg for mercy? Hold on! Now that I know all this, do you think I'll still meekly accept my fate? From now on, I, Shen Ling, won't let love hold me back. On the path to immortality, I'll live for myself and fight for my family!