Kim Jongdae, the second son from the rich Kim's Family that dominate almost all of the bussiness company in Korea. After his older brother, Kim Jonghyun left the house for chase his dream, Jongdae found himself being the next heir for his family.

Jongdae never once to wish to be a heir in his young live. He just hope for his younger brother, Kim Jongin to take the company over him. With his easy and childish act, Jongdae always playing around and not taking seriously his training become an heir, even in his younger brother help and reassurance, Jongdae keeps running and avoid his hell fate.

After meet with some certain tall blonde man, Jongdae finds himself more and did not want to be the next heir!

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Wu Yifan or people in his general line call him Kris, is a young chinese blonde man that studying in a certain university. Trying hard to finish his Bussiness major program to end his college life and just get a good job to change his poor life.

Since he left his family in China, to study in Korea, Kris always found it hard to live in the expensive live in Seoul. He get three jobs just to keep he living in, each Monday, Wednesday, and Friday he get a night shift at the local market, each Tuesday and Thursday night he work as a cashier at a family restaurant and all day in Saturday and Sunday he works as a private teacher for a middle and senior highschool.

Thanks for a certain short childish man, Kris who already have a busy and complicated life, now must deal with this noisy and clinging brat and turn his -try to make his peaceful- life into a crazy and excited life!