Taming Beasts, But the System Got the Timeline Wrong

"Halfway through life, nothing accomplished." "Seeing you're fifty and still won't admit you're old, Elder Ruan, out of pity, gives you a dragon pet nearing its end." "You've contracted a Time Dragon." No, he volunteered at the community pet shop, and they gave him a free baby green snake, where did the dragon come from? "Your Time Dragon has completed its first super evolution, awakening the power of time." Isn't this just a regular green snake evolution? Enough already, still a Time Dragon. "You've discovered a baby Kunpeng that can devour and evolve." Actually, it's an old grouper in the shopkeeper's fish tank, about to die of old age... Wait, is the system saying it has the talent for devouring and evolving? ...In the system's eyes, he gets more and more monstrous with age. In reality, he's only eighteen, his beast-taming career has just begun. (Elements of this book: System misalignment, text-based beast taming)