Yurina (Yura Kasumi), who has taken a teaching position at the school run by her father, feels deeply uneasy about being made to shoulder the school's debts. Determined to fulfill her responsibilities, she holds fast to her role as an educator. However, this decision drags her into a special class defined by absolute submission and humiliation. Through compliance, she discovers overwhelming pleasure, gradually becoming ensnared in this world. A strangely moving experience brings a turning point to her life.