Yamada, a timid student, helps her homeroom teacher, Mayumi, carry materials to the warehouse when the door suddenly closes and the two are trapped. After spending a long time in a cramped room, unable to move and stuck together, the two became dizzy with fatigue and suffocation, and gradually began to feel lewd. After that, the two were miraculously released, but Yamada, who broke his promise to the delinquents in this incident, once again put himself under the bed of Mayumi and her infirmary in order to escape from the delinquents. I have to hide...
