Lu Lingyi, a top psychotherapist, was forced to bind Shen Que, the technology giant CEO who fell into a deep coma, to his consciousness and get married in a virtual world called "Heart Abyss". She discovered that Shen Que's coma was caused by a terrifying system bug intended to erode the real world, and that she was designated by this bug as the "key" to the new world. As a staunch reformer, Lu Lingyi's goal has been clear from the beginning: to fix bugs, save Shen Que, and break this prison. However, the villain's consciousness, Shen Que, who was cold and cruel in reality, showed extreme paranoia and exclusive pampering towards her under the twisted logic of BUG. Every "rescue" he performs is hidden with murderous intent, and every "gentleness" he performs is like a sophisticated trap. Between the false sweetness and the real murderous intention, Lu Lingyi must walk step by step. When she finally touches the core of the world's truth, she is horrified to discover that the most unfathomable suspense is not BUG's conspiracy, but the crazy yet sober love in the eyes of the person next to her that even BUG cannot tamper with.