Final answer:
Without the specific source material featuring the characters Rain and Rose, it's not possible to provide the duration Rain lived with Rose.
Step-by-step explanation:
The question regarding how long Rain had lived with Rose pertains to a story or text that is not provided in the references above. None of the excerpts included directly answer this question about the characters Rain and Rose or provide specific context to their situation. To accurately answer the student's question, a reference to the source material where these characters are featured would be necessary. Without access to the correct source material that includes the characters Rain and Rose, providing a factual and professional response isn't possible.