"There is no day here, only a ruthless iron law called the 'Absolute Contract'. Violence is meaningless here, and only IQ and logic are the only bargaining chips for survival."
Lin Yan, an extremely rational former actuary, was pulled into this strange city called "Mobius" when he was on the verge of death. This place is filled with endless decryption games such as secret rooms, gambling games, and camp disguises. The winner takes all, and the loser loses everything. Faced with veterans who exploit loopholes in the rules to bully newcomers, and the superior "gatekeepers", Lin Yan has no fear, only a passion for solving unsolvable puzzles.
"As long as there are rules, there must be loopholes. As long as there is logic, there must be reversals."
When the absolutely rational monster descends on this crazy city, the identities of prey and hunter are suddenly reversed. This is a zero-sum game that breaks through the bottom line of human nature, and he is the ultimate winner who overturns the chessboard.