Kang Yeo Reum, a travel reporter from a failed girl group, is struggling to make ends meet. Just as her only remaining travel segment is being canceled, a strange request arrives from America.
Trouble arose from the first day of the surrogate trip?! "I was the only one left here, trying to do something, and this is what happened." The surrogate trip was set off without a plan! Problems arose as soon as they arrived?!
Yeo Reum witnesses a woman in Buyeo who resembles her client, Kate. She is Ji Suk, a hanbok master who has been making hanbok in Buyeo for a long time. Amidst the seemingly incoherent situation, Yeo Reum struggles to understand Ji Suk.
The person who requested the Hakodate trip was Yeong Hun, a cardiac surgeon and junior of Sang Sik. Unable to attend due to an important surgery, he asked Yeo-reum to travel on his behalf, along with a detailed itinerary.
Summer and Sang Sik were summoned by the chairman of a leading conglomerate. She was the sponsor of the "One Day Trip" program that Summer was hosting.