Quick Transmigration: I'm the Original Female Lead's Pet, and I Still Have to Date?

Dual heroines, one-on-one romance, happy ending, bizarre adventures, powerful characters, transformations into all kinds of animals, and all kinds of apocalyptic worlds. Bai Ling never expected that after scattering her soul to save someone, she would end up bound to a System. Well, the setup was a little clichéd, but she was still alive. What difference did it make how she lived? She followed the System's instructions and prepared to start her missions, hoping to become powerful as soon as possible, join the Space of the Lord God, and become an eternal true god. She just hadn't expected to find a wife in the very first world. She had transmigrated into a parrot, but that was fine. At least she could take human form, and the two of them lived a happy life together. In the second world, she became a dog. What could she say? She was starting to get used to it. And this time, the heroine looked just like her wife from the previous world. She had to be her wife too! Bai Ling immediately went over and shamelessly ingratiated herself. Her wife adopted her, and they began a happy life together. Then the third world began. Yes, just as you guessed, this time she became a cat. She was starting to lose it. Couldn't the System put her in a human body for once? Sigh. Since she was here, she might as well go find the heroine and see if she was her wife. After several days, Bai Ling finally found the heroine of this life. Yep, same wife as before, but wasn't she a little too young? Bai Ling looked at the little girl in front of her, who seemed to be about ten, and fell into deep thought. She couldn't make a move yet. How long would she have to wait? The fourth world...