Jaemin and Key have been best friends for like the rest of their lives, knowing every little thing about each other and being able to talk to each other about anything under the sun. Everybody around them thinks they are actually a couple but they're not. Are they? Until situations start to make them realize what they mean to each other. Up to the point of hurting other people and themselves as well. Will they be able to keep their friendship? Or will they clutch on to whatever feelings they have inside?