Abducted Alien Wolves to Bring Human Cubs

(Healing, daily life, cute babies, raising cubs, outsiders, light science fiction, two male protagonists) He was the only one in the whole city. He thought this would be it for the rest of his life. Until his three-year-old sister was delivered to the doorstep, dirty and smiling at him. He learned to braid his hair, steam custard, and draw height lines on door frames. A week later, there was another knock at the door. Outside the door is a wolf. "Luper is back," said the wolf.