<|im_start|>user
List the television series Kang Se-jung appeared in

Context:
Kang Se-jung (born January 15, 1982) is a South Korean actress. She made her entertainment debut as a singer for the K-pop girl group Papaya in 2000; the group released two albums before disbanding in 2001. Kang began acting full-time in 2004, and has appeared in television series such as Assorted Gems (2009) and Heartless City (2013). Upon turning to acting, she used the stage name Go Na-eun before reverting to use of her birth name in 2017.<|im_end|>
<|im_start|>assistant
- Assorted Gems
- Heartless City<|im_end|>
