The fourth installment of the series is finally here! The girls still fumble with their fingers as they pleasure themselves, trembling with adorable expressions on their faces. Obsessed with the pleasure they've just discovered, they can't resist the excitement of masturbating in the bathroom. Before heading home after school, they always sneak away to the same spot, creating private moments for themselves without worrying about being seen. This pleasure holds a special charm—an irresistible, mysterious allure that keeps drawing them back.