Our motive is hero's assistant. When people heard this word 'hero', they think of 'usual hero'. I mean, visible hero. But hero can make their own energy with help from others. Hero always has assistant.(for example : family, rival, teacher..) By some way, assistant makes hero. But people don't know about real hero's existence. Because they are hidden in the hero's back side. In this sense, we focus on hero's assistant who people don't know. It's time to reinvent 'Real hero'.