Lin Mo, a high school art student, discovered that his shadow had an independent consciousness - it was called "Dark Shadow" and was the embodiment of all his repressed desires and impulses. Shadow fell in love with Su Qing, the art committee member of the same class, and began to do all kinds of crazy pursuits for Lin Mo: painting portraits of Su Qing all over the classroom late at night, sending passionate letters anonymously, and even threatening her suitors. Lin Mo tried to stop it, but found that Su Qing herself also hid a huge secret - her shadow "Qingying" had also awakened, and was far more dangerous than he imagined. The two shadows are secretly joining forces, planning to completely replace the body and create their own "perfect youth" in the real world.
