Five years ago, with the words "not the same world", architect Su Yang and poor student Lu Zeyan broke up due to misunderstanding; five years later, he became her CEO of Party A, and they met again in the elevator late at night. He was obsessed with her slender waist, using a possessive touch to pull at the old love, using the waist chain as a contract and misunderstanding as a thorn. From the scorching confinement in the elevator to the public announcement in the conference room, the two untied the knots in their hearts amidst the ambiguity and temptation, sparking fire around their waists, and finally reunited the broken mirror.