[Reducing Mosaic]HUNTC-470 I got a stepsister because of my parents' remarriage! But she's a shut-in otaku who rarely leaves her room. Naturally, she has social anxiety, so our conversations are kept to a minimum. However, she has a high sex drive and sometimes leaves a n

My new stepsister who started living with me is a shut-in with social anxiety... She barely talks to the family and just stays in her room all day, lost in the internet. Naturally, she doesn't give a damn about me, but then one day I find a note on my door saying 'Want to do it today...' Apparently, my stepsister is a shut-in but has a strong sex drive. Watching porn online isn't enough for her, so she wants me to stick my dick in her! Well, looking closely, she's cute, and I have no reason to refuse. Since then, my stepsister summons me with notes every time she gets horny and makes me fuck her non-stop. However, in daily life, the distance between us remains unchanged.