After a fire devoured their home and parents, the fate of brothers Lin Yan and Lin Yuan was completely torn apart.
The elder brother Shen Du was once an indifferent genius who could not feel the world, but now he has split into two people: one has an almost crazy possessive nature towards his younger brother, and the other is a cold and perfect "protector" named "Shen Du". The younger brother Lin Yan is Lin Yuan. After being betrayed by his trusted friends one after another, he became confused. The horrific fragments of the night of the fire and the elusive eyes of his brother kept flashing back in his mind.
A mysterious letter, bearing the ominous mark of a raven, leads them back to the abandoned manor. Buried here is the truth of the past: a huge and dark organization controls their lives. This organization takes advantage of the special bond between brothers, treats them as experimental subjects, and carefully cultivates their twisted dependence and pain - the older brother is shaped into the younger brother's cage, and the younger brother's pain becomes a sample for organizational observation.
What kind of secrets are hidden behind the truth they want to find out, and what is the relationship between Shen Du and Lin Yan?
