The very first episode start with a dream where the male lead character, Park Hyung Sik as a Ahn Min Hyuk saw that he was travelling from the bus with another passagers. Suddenly the bus was about to crash with a woman and her a kid but the bus came in a control and stop. He saw a woman at the near of the bus. He was about to seen her face, a phone rang and he woke up. That call was from blackmailer who threat him because he was the CEO of gaming company, Ainsoft. Without listening him properly, Min Hyuk hang up the phone.
Let's talk about the female lead character, Park Bo Young as a Do Bong Soon. Bong Soon has a power/strength which came from her grandma. Her mother loss her power when she misuse that. Bong Soon was seeking for a job where she had try in so many company but she always failed. Her dream was to join Ainsoft to create a new game by her ideas.
One day, when she was passing by a road, she saw some gangsters were bullying an old man and block the road where school bus has hanging there. She teach them some lessons by using her power. At that moment, Min Hyuk was also there watching the whole scene. He was shocked seeing that type of strong woman. Later everyone went to the police station to give their statement.H
Here come the another male lead character, Ji Soon as Gook Doo, a policeman of that colony. Gook Doo was Bong Soon's childhood friend and her crush too. He and the whole department was shocked and they don't believed the gangsters. At the time, Min Hyuk appeared there and he said that he was responsible for that fight.
Later, police believed in him and released Bong Soon and send that gangsters to the hospital for treatment where Bong Soon's brother treat them as a doctor.
Min Hyuk thought that Bong Soon will be perfect for a bodyguard to him. So he send a proposal via his manager. At first, Bong Soon refused to be as a bodyguard but later when manager mentioned her that it was a request from Ainsoft's CEO, she instantly accept the proposal because her dream was to be part or Ainsoft. Min Hyuk and Bong Sum meet again for professional work. Bong Soon also put a condition that if she will caught that blackmailer, he has to shift her in a strategy department to create a game. He also accept her condition.
At the same time, a psychopath appear at the area of Bong Soon's place at the night time where he kidnapped beautiful and skinny woman.
Min Hyuk and Bong Soon tried many times to catch the blackmailer and they caught them at last. It was Min Hyuk's half second brother whom he trust the most. Min Hyuk was completely shocked and broke after that incident. So Bong Soon tried to cheer him up and later he came back in his normal way.
Min Hyuk startedu to fall for her but he knows that she like Gook Door as well so it was impossible to him to have any kind of expectation. Bong Soon like Gook Doo from the high school and her feelings towards him hadn't change yet. But she knows as well that Gook Doo didn't like her as she did. Also Gook Doo never realized about Bong Soon's feelings because he already had a girlfriend but later they broke up because she started to like Bong Soon's brother.
She express her feelings towards Bong Soon's brother but he reject her because he didn't want to make a complicated relation with Gook Doo.
Bong Soon request Min Hyuk to shift her in strategy department as he promised before. But he refused. He thought that whenever she didn't utilized her power properly she won't be able to control her strength. So he start to train her and finally she was able to control her strength.
Gook Doo realized that he also like Boog Soon but he never realized it. Whenever Bong Soo was with him, he only scream at her. But it was too late. Bong Soon started to like Min Hyuk during the training's time. When Min Hyuk express her feelings towards her, she was confused but later she realized that she also like him as well as he do. After that they became a couple.
That psychopath kidnapped three woman already and he kidnapped Bong Soon's friend again as well. Actually his motive was to get revenge from Bong Soon because when he fist tried to kidnapped her friend, she rescued her and injured him. After that, Bong Soon, Min Hyuk and Gook Doo tried to catch him and after trying for many times, finally they succeed and send him in the jail. When he was testify by police, he says that he did it for only fun. So as the result he had to imprisonment.
At the last episode, Min Hyuk and Bong Soon got married. Bong Soon give a birth of twin baby girl who was born with the power which Bong Soon and her grandma had already.