Set during the Joseon era, Hong Cheon Ki is a female painter with a genius like painting talent. She is picked as the first female painter of the Dohwaseo. Hong Cheon Ki also has a beautiful appearance and a bright personality. For her, painting is everything. One day, she meets Ha Ram.

In this one-of-a-kind social experiment, four individuals attempt to find their perfect spouse via astrological matchmaking. Their romantic adventure takes place at a retreat run by a mystical guide, the Astro Chamber. They mingle, match, date, eliminate, and eventually make the biggest decision of their lives… will they marry their match based solely on their astrological compatibility?