Who Wakes up from Dream

Leon occasionally has strange dreams. In the dream, he had another name and lived another life. After waking up, those experiences did not disappear completely - the unfamiliar knowledge, the skills that were suddenly learned, and the feelings that came from unknown sources all remained. At first, he thought it was just a dream. Until he found what existed in the dream in reality. He began to look for the traces left by his life, and it became increasingly difficult to answer a question: Who is it that wakes up?