Oshikko Sensei

Oshikko works as a nurse in an elementary school, where she takes care of the health problems of her young students. Her methods are far from conventional, focusing on issues related to the stomach, bladder, and vagina. She uses techniques involving urethral insertion and liquid pumping to treat her patients, often in ways that blur the line between medical care and personal satisfaction.

The story follows Oshikko's daily interactions with the children, who come to her with various ailments. She administers her treatments with a calm demeanor, but her actions reveal a deeper, more personal interest in her work. As she tends to each student, the boundaries of professionalism and propriety are tested, leading to situations that are both clinical and intimate. The manga explores the dynamics of power and trust in a school setting, where the nurse's role becomes increasingly ambiguous.