Gu Leng, an orphan, is a five-year-old child who transmigrated for some unknown reason, only to end up in the body of an eighteen-year-old adult. He also inexplicably gained memories that didn't belong to him, all of things he'd never encountered before. At least he had a little companion in his head, always helping him and telling him what to do. That was the only thing that put him at ease.
Sometimes, when he accomplished a small goal, his companion would even reward him with a chance to live in a real family and be loved.
To earn the affection of his “parents,” he gave it everything he had.
Also known as: Transmigrated, or Transmigrated Into a Book