Leeteuk's parent's passed away a year after their last child was born. Now, Leeteuk, as the eldest son, had to take care of his 3 younger brothers, Eunhyuk, Donghae, and Ryeowook. They lived in a small apartment and they all had to pitch in to bring enough money into their little family so they could eat, clothe themselves, and go to school. The 4 brothers do their best to protect each other, but what happens when Ryeowook meets his new school's bully, Cho Kyuhyun?