Kim Minji or Lady Me, a 16 year old girl who had been living alone a year after the death of her grandmother. Living with extraordinary skills of a fighter for 13 years despite being a girl, it has helped her with her days quite well. She grew up to the fact that she never had parents and her grandmother and Ilhoon were her only companions in her life. 
 

Jung Ilhoon, Minji's only true and faithful best friend. The one who was there for her through ups and down alongside her grandma.
 

One evening, walking home while feeling tired, Minji got caught up by a drunk man calling her his daughter. In the midst of trying to run away from the limping man, she bumped into the Block B members, refusing to let her go. Recalling back what her grandma had taught her, she held her head high and fought back. She managed to escape after knocking down three men from them. 
But how will she face them again when the second time meeting will be in a family reunion! Weird huh?