Xu Tinglan traveled through the book to become a cannon fodder female supporting character who was destined to be killed by the villain Su Yuchen, and was bound to the "Villain Redemption System".
The system required her to reduce the blackening value through conventional methods, but found that the harder she worked to defeat the villain, the higher the blackening value became.
I accidentally discovered that the behavior of messing up could actually reduce the blackening value, so I started to reverse the operation and deliberately triggered the BE option.
Su Yuchen was attracted by this abnormal behavior, and gradually uncovered the mystery of his life experience and the truth about his darkening.
The two developed true feelings while testing each other, and joined forces to fight against the real system maker behind the scenes.