College student Chen Mai wakes up to find himself transformed into the stunning face of missing heiress Jiang Zhao, while remaining an ordinary guy beneath the skin. Bound by bizarre rules where he has a female voice when shy and a male voice when angered, and will completely vanish if he smiles fully at the camera, he can only preserve his selfhood when called by his real name, 'Chen Mai'. With the thirty-day deadline of ploic welfare arena approaching, the Jiang family attempts to transform him into a puppet double. Brother Zhou Ye, reporter Lin Xia, and a mother who recognizes only her son's soul accompany him on the adventure. Following the clues left by Jiang Zhao, everyone fights against the dark forces of capital. In the public welfare arena, two identical faces confront each other; Chen Mai refuses to replicate anyone else's smile, guards his identity, and ultimately returns to his original life.