WANZ-939 Nagase Yui: Growing Up with My Little Sister, Treated Like a Maid and Domineered Over Day by Day… My Dear Wife, Please

My little sister 'Yui' has been wary of me since we were young. She seemed to know something about me, acting shy and cautious. As she grew fond of erotic things, speaking boldly and playing around, I became completely obsessed. 'Anata is my servant,' she declared. Over the next three months, then another three months, we met regularly. As she matured beautifully, I was made to handjob her, forced to lap her privates, made to watch her AVs, even made to watch her having sex… For ten years, I was tormented by my growing-up little sister.