Shen Nanxing's secret love for Yu Bei lasted for three years, and she silently followed his life by stalking him. Yu Bei lost his memory due to an acetonitrile poisoning accident in the laboratory. Shen Nanxing took the opportunity to lie about being his girlfriend and took him home to take care of him, creating the illusion of love. Yu Bei intuitively saw through the lie, but he enjoyed her nervousness and clumsiness, her counter-control of the relationship, and her yandere possessiveness. Shen Nanxing struggles between deception and sincerity, and the memory of fear returns. Yu Bei found out that she followed her in the past and had long been addicted to chasing her. When the disguise is peeled off and the dominance changes, the two people move toward an unknown ending in a dangerous entanglement. In the end, they reconciled, officially fell in love, and faced reality together.
