This angel has been meowing for 2 days straight next door. The first day I thought her mom could be somewhere searching for food, the second day she sounded a little bit fainter and got me worried. So my roommate and I went there (the house is empty) and found her by the entrance door. She was too scared that she hissed at us. We gave her cat milk to drink but she resisted and kept hissing. So we went back to our house to wait for a few hours, went back there and she was getting tired. It felt like she just gave up waiting for her mom. I put her in a cage because we already have 2 cats in the house, so she needed space for herself.
It took 2 months for my eldest furkid Day to get along with her. Now she's the most affectionate among all 3 of my furkids.