Ko Sang-Sik is in his 40's and still single. He works as the environmental facility section chief at city hall. Ko Sang-Sik becomes involved with Kang Min-Joo. She is also in her 40's and still single. She works as a PD at a broadcasting station.

• Ji Jin-hee
• Kim Hee-ae
• Kwak Si-yang
• Kim Seul-ki
• Lee Soo-min
• Stephanie Lee
• Kim Kwon
• Jeong Soo-young