Is it dangerous for an introvert to hang out with gyaru? Why are the popular gyaru middle-school sisters trying to talk to me, an introvert? This exciting school life story where they have XX before they become friends has now begun!

Nezumi is a shy introvert who has spent most of his student years alone, but he decided that this year will be the year he changes! But then he bumps into the extroverted gyaru twins on his way to school. For some reason, they're rather touchy-feely and the younger sister is especially aggressive... His desperate attempts to avoid them backfire and he not only ended up running into them, pushing them over, but he also has their breasts in a tight grip! Oh, that's the end of my high school life!