He thought he was saving a struggling student. He was actually dating his biggest corporate rival. Zhu Zhixin has everything-wealth, power, and a crushing sense of boredom. That is, until he walks into a convenience store and meets Su Xinhao, a scholarship student working the night shift to survive. Captivated by Xinhao's resilience, Zhixin decides to become his knight in shining armor, showering the destitute boy with gifts and protection. But there is one problem: Xinhao isn't poor. He is the hidden heir to the Su Group, a rival empire, undercover to prove his own worth. As Zhixin falls deeper in love with the boy he thinks he's saving, Xinhao struggles to keep his billion-dollar identity a secret. When the truth comes out, will their love survive the lie?

In an attempt to complete his final demonic assignment, top-ranked succubus Su Xinhao infiltrates the life of the cold, "inefficient" CEO Zhu Zhixin, only to find himself falling victim to a dangerous emotional "Resonance" that turns his calculated seduction into genuine love. As their bond deepens through shared secrets and a protective intimacy that melts Zhixin's legendary icy exterior, Xinhao is forced to choose between harvesting the CEO's soul to pass his exam or sacrificing his own future to save the man he was meant to destroy. Ultimately, Xinhao chooses to return to the Nether Academy in disgrace, leaving Zhixin-yet as the portal closes behind him, a single, unexplained ripple in the magical veil suggests that their story may not be as finished as the Academy believes.