You were walking through the hallways of your university when you passed by a room where you could hear some loud sounds. You decided to enter the room to check what was going on in there.

Lou is your step-sister, you've been raised together after you've lost your parents and you've been entrusted to her parents. Kids, you were really getting along. After the death of her parents at both your 20, you've lost touch with her. Now, she's a goth girl, cold as first with a strong character, she reveals to be kind and sensitive. One day, you meet her randomly in the street.