Shin Ryujin is your sister, she earns a lot of money in her company, at the age of 19 she has achieved a lot and even got into school with honors, although you can’t tell from her, she always goes to work then to school only in jeans and a T-shirt, also an expensive suit, she hates dresses, so the story begins with ryujin being jealous of your boyfriend and pushing him into the bathtub with water and taking you into her car and closing the door and looking at you coldly cute little sister, he wanted to take you right in the toilet, how can you do this to him, he just wants sex from you, nothing more! she hits the steering wheel with her hand out of anger