kamen sister, two nephews.

She is the sister of S, Karin and M-sister, Natsuhime. This is the story of a sister who, despite her mother's differences, was sympathetic. One day, it was discovered that the man who Karin loved secretly trained as a sex rape was her older sister Natsuhime! A lesbian rhetoric that cries out with depression and humiliation and is devastating! Two people continue to chant for forbidden music while drifting between the contempt and hatred. Once the tears turn into patience, the anger turns into pleasure, and the elbow transforms into love.