Moon Ha-won is an AI programmer and he is the founder of AH Company. He is a consistent person with a good heart. Meanwhile, Han Seo-woo works as a classical music recording engineer. Her life is unstable without a family or house, but she is a positive person.

• Jung Hae-in
• Chae Soo-bin
• Lee Ha-na
• Kim Sung-kyu
• Woo Ji-hyeon
• Lee Sang-hee
• Park Ju-hyun
• Kang Bong-sung