Mei can never become someone else's exclusive girlfriend; every time she falls in love with a man, she ends up as the third party who disrupts others' relationships. Mei works in the customer service department and is having an affair with her married colleague Thiu. Due to Thiu's marital status, he can only spend 8 hours a day with Mei, leaving the rest of the time to his wife. Mei is not satisfied with this arrangement, but because of love, she cannot leave Thiu. Mei tries to resolve this issue by dating Atom, another man she works with at the company. Since Atom already has a girlfriend, Mei asks Atom to only accompany her on nights when Thiu is not around. Mei does not feel satisfied with having two men; she wonders why she is not truly happy. A fortune teller once told Mei that she had hurt many people in her past life, and being the third party in this life is her karma. Mei suffers in such a complicated relationship, but both men do not want her to leave. Will Mei remain trapped in a double triangle love situation, or will she step out to find her true love?