Two sisters, Kaho and Kasumi, are eyes deep in debt thanks to their now deceased father. Ookura Hiroyuki, a student of Kasumi who has a huge crush on her, finds out about her financial difficulties and offers to help out… but, only if…
Shakkin Shimai 1

Kaho and Kasumi struggle under the weight of their father’s crushing debt, their desperation palpable. When Hiroyuki, Kasumi’s devoted student, discovers her plight, he seizes the opportunity to fulfill his hidden desires—offering financial relief in exchange for their bodies. Amidst reluctant surrender and heated exchanges, the sisters reluctantly submit, their innocence traded for survival. Lust intertwines with power as Hiroyuki claims them both, sealing their agreement in feverish, unresisting passion.