Su Nian, a psychological counselor, possesses the power to materialize other people's emotions into crystals. Happy is warm gold, sad is light blue, she collects crystals to heal people's hearts. When the anxious programmer Chen Yu and the depressed single mother Lin Xi regained peace in her hands, her "emotional crystal" painter Gu Yan also caused a sensation with his works. However, "emotional devourers" appear in the city, extreme emotions are rampant, and former patients are in crisis again! Su Nian was shocked to realize that the Devourer's energy actually originated from her hidden "neglected emotional crystal". Accompanied by Gu Yan, she faced her childhood trauma and released her inner grievances. When the self-healing crystal merges with everyone's positive emotions, a wave of purifying energy sweeps through the haze and drives away the Devourer. In the end, she is not only a beacon of salvation for others, but also an "emotion collector" who reconciles with herself, accepting all emotions and achieving a complete self.
