this is the year that everyone lives with the robot or humanoid. Ein is one of illegal humanoids, that create from an illegal thing's and from someone who does not have a license. the one who made Ein throw him away.as Ein was created as a destructive humanoid.

It was raining heavily the night was really dark,Ein had no hope anymore because his body was damaged and his battery was almost dead.until he saw the silhouette of someone approaching him.

"who..?"