Lee Gihoon , a 16 year old teenage boy living with his busy brother ,Lee Jihoon , a 25 year old neurologist at HSMC. Both brothers live in the same house but , both of them rarely see each other as Jihoon always on-call and rarely at home , while Gi Hoon is a top student at a prestigious school , Shinhwa Science High School. Gihoon is a very smart students who really cares for his future. He only studies in his life , so , he is also rarely stays home and will be back home sometimes at 2 in the morning because he will attend a 'hagwon' , an afterschool academy. Gihoon only focus on his grades and doesn't care about anything else. While , Jihoon is somewhat like Gihoon , but since he has become the youngest neurologist surgeon there , he has achieved his dream. But , bacause of his very busy schedule , he had no time to check on his brother. He only thought that he had provided everything that his brother needs like enough money and a shelter. But , theres something that Jihoon doesn't know about Gihoon. and Gihoon actually hides something 'big' from Jihoon. What happens if Jihoon knows about the thing that Gihoon has? How will he react?.

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                 At the lobby of Pavillion Residence building , 

           "Lee Gihoon was walking towards a lift while reading bio notes. He pushed the 'going up' button and wait for the lift. While waiting , he continues to read without caring what was happening around him. Then , theres Lee Jihoon arrived at the lift also. He spotted his dongsaeng reading notes. He giggles. "I've never seen this boy without a book." Jihoon stands beside Gihoon and wrapped his hand aro