Dongwoo worried a lot about his best friend Sungyeol because although being a doctor he didn't live a sophisticated life. Sungyeol used to think that having the capability to treat others must be used for a noble cause. He used to travel different places to volunteer & help the people who can’t afford for the expensive treatment of the hospitals.

             Similar was the worry of Kim Sunggyu about his one and only brother Kim Myungsoo who wanted to help everyone around. And by everyone we mean each person, animals, birds, insects, trees & every living being. One day while he was watching the news channel, he happened to see that lots of sharks are being killed to fulfill the cruel human need. So, he is set for a venture to protect those lovely sharks.