A scene depicting an intense reaction deep within the older sister's vagina, near the cervix. As the thrusting deliberately focuses on deep penetration, she reaches climax with a faint, almost broken smile on her face. At that moment, her cervix fully opens, overwhelmed by an enormous cumshot that delivers the final blow. In that instant, she wears an expression as if departing from the human world, no longer the "Kanako-san" everyone once knew.