Sweet Enemy[1] (Korean: 달콤한 원수; RR: Dalkomhan Wonsu) is a 2017 South Korean television series starring Park Eun-hye, Yoo Gun, Lee Jae-woo, and Park Tae-in.

Her life was totally changed after she was wrongly accused of murdering Jae-hee.

After his lover Jae-hee's death, he became deeply depressed and lost his motivation in life.

She acts like a kind-hearted person in front of everyone, but she hates Jae-hee because of her success.

One day, she pushed Jae-hee down from the upper verandah of Sun-ho's family summer villa and she died.