After Fred's new invention accidentally turns Hiro into a five year old, Tadashi has to take care of his little brother by himself while trying to figure out a way to bring him back to normal with the help of his friends. But between challenges and babysitting, Tadashi will also find out that he means more to his younger brother than he could ever imagine. Note: Story Credit To Its Original Author, Not Mine. Note: I Only Own My OCs. (Yes, I'm Adding My OCs In This Story Just For Fun)
4 parts