Chen Mo was a delivery boy who was driven to a dead end by bad reviews, until he accidentally bound to the "emotional delivery system". From then on, food delivery is no longer just food delivery - he can extract customers' emotions, turn anxiety into butterflies, condense fear into daggers, and crystallize anger. In the first song, he extracted the black anxiety from the woman; in the second song, he received a "desperate" package sent to himself, which contained a rotten heart with his name engraved on it. As the order deepened, he found that he was involved in the murder case three years ago. The DNA matched the deceased and may even be the murderer. Private detective Su Wanqing comes to the door, the black-hearted boss Tang Yi is overwhelmed by his emotions, the abandoned mental hospital hides memories in petri dishes, the basement of the orphanage is filled with rotten hearts engraved with people's names - and behind the system, stands a person who claims to be a "dead person": Chen Mo himself. When the seven memory fragments are collected, he must choose: be completely swallowed by the system, or use the power of emotions to kill his other self.
