Beast Tamer: After My Pet Space Mutated, I Became OP

Ming Xi, an Earth girl, transmigrated into an interstellar world where beast taming was the foundation of a brilliant civilization. Her identity? A miserable middle school girl saddled with mountains of debt, juggling three part-time jobs just to support her family. Doing adult work? Is this really something a minor should have to deal with? Even though life was that tough, Ming Xi still took it all in stride. Because pet beasts were just too awesome! Super awesome! — Description from novelcodex.org