ATEEZ member San (Choi San) will sing a drama OST for the first time in the eight years since his debut. The production team of SBS's new Wednesday-Thursday drama "Nine to Six" unveiled its OST lineup on the 11th: lead actor Yook Sung-jae (BTOB), San, Danish singer-songwriter Christopher, Yu Young-hyun and Seo No-ah. San's OST "Not Like Lovin' Me" will be pre-released at 6 p.m. on the 18th, ahead of the drama's premiere. Christopher returns for another Korean drama OST, and lead actor Yook Sung-jae will also sing for the soundtrack himself. "Nine to Six," starring Park Min-young, Yook Sung-jae and Go Soo, is a work-love-balance romance between a woman who is 100% logic and a man who is 100% warmth. It premieres at 9 p.m. on the 25th.