A Max-Level Title Douluo, the System Is Telling Me to Be a Newbie

After twelve years of arduous training, I achieved the title of Title Douluo, wielding the Demon Blade Thousand Blades, standing proudly above all others. Just as I was about to crush the Spirit Hall and dominate the continent, a ding-dong sounded in my mind— "Dear rookie Spirit Master, welcome to the Douluo World! Please immediately complete your first mission: Slay a ten-year-old Spirit Beast!" I stared at the Demon Blade in my hand, which had slain a hundred-thousand-year-old Spirit Beast, and fell into deep thought. Is this system an idiot? Until it issued a follow-up mission: "Pick up the unconscious Tang San by the roadside and give him a loving kiss..." Wait, this plot seems a bit familiar? ... Before me stood the Holy Mountain of the Spirit Hall, towering...