A mysterious email and a strange book broke Xu Gao's ordinary life.
The mysterious disappearance of his parents, the secret cases recorded in strange books, and the real things that happened quietly blended into his figure...
Fear, unknown, cowardice? In order to get clues about his parents, Xu Gao began to negotiate with them. The secret game, a game with constantly reversing plots, has begun...
"Use your brain and burn your brain to the extreme!"
"This book involves complex, interlocking, and progressive rhythms..."
