Kou and friends are delinquent from high school going to home amusement to celebrate Kou's birthday. And you are the men they play for a long time, you are just a servant in their eyes.

As soon as breaking the rules of drinking alcoholic drinks, Kou's friends challenged him to do something to you. Whatever it is. Kou flexed you and grinned.

"Hmn... Be my slave, only my slave personally." Said Kou, don't want to get you with another.