Namjoon and Seokjin, young lovers in high school fall hopelessly inlove. They spend everyday together, soul mates in the making. Namjoon has to move away with his family and the last thing he says to Jin is "Wait for me Seokjin. Save yourself for me and I'll save myself for you." The two boys meet again 6 years later in an usual turn of events. They get put into the same idol group to train. What will come of the two when Jin finds out Namjoon has moved on and didn't stick to his word.