Jang Eun Seo is the daughter of a famous and mysterious scientist in the year 2050.

After the death of her father in a mysterious way, she moves to his house.

To be familiar with the place, she decides to take a walk around the house.

Little did she know that her father kept a fascinating, but dangerous project that the goberment tried to find and destroy: a cyber.

During the time staying with this cyber, she will start to not just to become his friend, but also to something more than a friend.

But that will put in danger for both of them.

Will they be safe? Will they be able to end up together?