Min-Ji and Yu-Na, who have always been together. From the age of 17 to the age of 21, they are each other’s best friends. From one day the relationship is subtly different. Min-Ji’s wild dream about Yu-Na started! Their relationship begins to change into something other than their best friendship. Unrequited love, excitement, and obsession. ˜bad ideas growing up in their own minds. Where will their bad ideas, which began on a lush college campus, finally arrive?