Otosareta Gishi - Akogareteita Gishi ga Classmate no Te de Kairaku Choukyou Saserareteiku | 堕とされた義姉 ～憧れていた義姉がクラスメイトの手で快楽調教させられていく

Makoto and Mia became siblings after their parents remarried when they were young. In the beginning, the two were at a distance, but as time passed, they got along like real siblings. One day Mia who was looking for a new part-time job, tries to apply to the coffee shop where Makoto also works part-time. For Makoto, Mia is a respected and proud older sister and there is nothing wrong with her applying for the same part-time job. ……It shouldn't be there, but an indescribable little anxiety wells up in his chest. In the end, unable to put his anxiety into words, Mia starts working at the same coffee shop as Makoto.

Even if she's clumsy, ugly, and hated Still, I should have told you ――That regret is after everything has fallen into black lust――