"Back then, Zhang Yu entered the ancient ruins with your father. They both learned about the Great Cataclysm, but because Zhang Yu’s strength was inferior to your father’s, he couldn't seize either of the two supreme treasures—the Portrait of Immortals or the Bronze Token."
"Later, he plotted to harm your father, but ended up being killed by him instead. When the Zhang Family found out, they sent a large number of experts, determined to avenge Zhang Yu. The result was that every person the Zhang Family sent was wiped out by your father."
"Although the Zhang Family failed both times, it forged a deep grudge between your father and them. Eventually, the hatred escalated, and in a fit of rage, your father attacked the Zhang Family and single-handedly wiped out the entire clan!"
Chapter 421