Akina is a female college student who studies hard to become a teacher loved by her students, but her father's company is on the verge of bankruptcy and she has to raise her own tuition fees. Akina heads to her tutoring agency to find a part-time job for her. Little did he know that it was a den of evil that selected only good-looking women, loaned them money with clever words, and forced them to perform sexual services for their male guardians.