Bad Thinking Diary

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.