One day, "Ruru" visits her uncle's house still wearing her school uniform. Having grown into a mature gyaru with blonde hair and piercings all over her body, she finds herself thinking about sex constantly, unable to focus on her studies. The only person who can discipline her is her uncle. Her soft, delicate body flushes red at even the slightest touch. Then she whispers, "Please let me suck your cock." In response, he uses his cock to punish her young, inexperienced pussy, vividly depicting his innocent niece mindlessly drowning in the pleasure of his cock.