
Three sisters living together. The sisters go out to cure the disease of the youngest brother, who is eating disorder. The second older sister’s boyfriend, Jae-Hoon, introduces Cheol-Woo, who is known as an energetic person, at Hye-Jeong’s request.. Eun-Mi, the youngest, who meets Cheol-Woo, tells her story of her new world experience. The older sisters who are curious about the new world take turns to Cheol-woo…