"That slutty Ganguro slut, my little sister..."this is a game type from Wild Flower Studio, which was released in 2012.  The effect of the hentai takes place in the present somewhere in Japan. The younger sister of the protagonist has always been sweet and fluffy, but recently something happened and her character and habits have changed dramatically. She became naughty ganguro slut! The hero tried to understand what happened to her,

One day I got busted stealing my sister's panties. She tied me up and got me under her heel in a big way. I'm a naughty punishment lover and she's the dirty-talking sadist for me!!