A couple in their 20s, Iee-wan and Hwa-ran. All they have are dream and love. They just like being with each other. Finally, they decide to live together after moving out from Gosiwon, a very small studio. But it’s not easy just doing nothing special in reality. Iee-wan and Hwa-ran were scammed out of the deposit of the house they rented on loan by the real estate agent, so they were looking for the house they can afford while staying at friends’ places. Eventually, they move to a place in the second basement full of mold where you can’t tell whether it’s day or night… will they escape from the basement while keeping their dream and love?