Kim Minseok would describe himself as an average guy you will meet on everyday basis. He likes books and studying, specially calculus. If you ask him what his hobby is he would probably reply by reading books cooking maybe.

Lu Han ,however , is exact opposite of him. He is handsome cheerful and loves adventures while Minseok drifts into his imaginary world in his comfy room.

Of course both of them loves their own lifestyles and never wanted it to change, while their friends and family thinks otherwise.

"You should get out of your room at least once a week Seok-ah" says Kyungsoo his best friend since middle school.

"When are you going to stop flirting around and start studying for real" exclaims his childhood friend Lay,aka Zhang Yixing.

But what will happen when they meet?