[Qiangqiang/two-way redemption/undercover and counter-undercover/deep sadomasochism/identity reversal/reunion]
In the maze of layers of disguises and turmoil, they circled around each other, testing each other step by step, but they understood each other's helplessness in the difficult situation. When the calculation turns to silent protection, when concealment becomes the only protection for the two, countless obstacles stand between them. At the dividing line between morality and choice, how should they cross the barriers and rush towards this unforgettable two-way redemption?
