Overlord of the Heavens, Start by Catching Pets

Other people's otherworldly time travels have random skills and random level upgrades. Why does my Ye Weiyang system only have one skill: "Capture"! Ah Xi, it doesn't matter what a skill is. One day I will catch a mythical beast as a pet. "Warning, pets need to rest and cannot fight..." "Warning, your pet is hungry, please feed it as soon as possible..." "Warning, pets are left out and their loyalty is reduced..." Ah, what kind of broken system is this!