I am not Yours!

Nano Walker was heartbroken and had gotten herself drunk. She had stupidly walked off the cliff and found herself transmigrated. When she woke up, someone had just left. She soon found out that she wasn’t herself as Nano Walker, but as Nano Harlequin, a worker who had overworked herself. However, one thing was strange. Everyone wasn't human, including her. Now, she was faced with the reality and situation of the previous owner’s body. Her boyfriend was cheating on her, and her own family had already disowned her. Her boss was also consistently always shoving work into her face. Having enough of this, she discards them all, drawing someone's interest in her. Once unemployed, she was immediately offered a job by him, Yua. However, little did she know what she was getting into. The truth behind "overworking" and Yua's real intentions. Would she be able to find out his true intentions and the truth behind it?