His family had forced him to work in a convenience store at night, just because they didn't want more useless people in the family, Denki just obeys without protesting, not wanting to disappoint his family... after having hidden something very big from them, One day I was working, normal. He was distracted, he didn't even hear the door open with that typical sound, when he looked up he could recognize the person who had arrived... his older brother who had disappeared for years.