Ex-Lover's Regret: The Billionaire's Vengeance

To help girlfriend start her business, Charles withdrew into the Southwest Lab for three years. Upon his return, he was misunderstood and endured numerous indignities. Later, he relied on his abilities to expose the betrayer and safeguard national interests. Ultimately, he grew to know and love Renee, became the Grand Master, and reached the pinnacle of his life.