Mio-chan's weak points are revealed right from the start. When pressed with "Where's your weakest spot?", she carelessly answers honestly. And she knows that's the first spot they'll target... so clumsy. There's no escape. She's fidgeting even before being touched, and the way she can't prepare herself despite knowing what's coming is irresistible. Once it begins, not only the soles of her feet, but also her sides and armpits go wild! But her neck... huh? What...