Siren Ding Zhi de Ni

In the original work "CEO's Personal Tailor," Song Fengshi is the manager of a luxury store and unexpectedly runs into an old classmate who is now a CEO. The next day, he wakes up to discover that he had an intimate encounter with said classmate. He fled in a panic, only to later discover that the CEO had acquired their brand and had become his new boss. (Source: Bilibili Comics)