Because at that time, only one of the three was single, and they had sworn an oath when they made a pact of brotherhood: "A friend's wife is off-limits...",In the midst of their conversation, Guan Hao asked, "Three years ago, what exactly happened Why did you disappear without a word",As soon as Guan Hao's words fell, Zhang Yi said, "No need, let's go our separate ways."。