Only after becoming a Titled Douluo, will the counterattack system come?

Lin Fan traveled to Douluo Continent and found that he had no golden finger and his talent was average, so he could only stay at home and practice honestly.
Forty years later, Lin Fan worked hard to cultivate and became a Titled Douluo. Suddenly, a system appeared, claiming that it could allow Lin Fan to counterattack and become a supreme god.
However, Lin Fan fell into deep thought as he looked at the first task.
"Host, please join Shrek and defeat 12-year-old Tang San (Grand Soul Master Level 29)."
"Your system is lagging a lot."

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